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	<title>satellite &#8211; Fountain Magazine</title>
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		<title>Is the Shape of the Earth Changing?</title>
		<link>https://fountainmagazine.com/all-issues/2009/issue-70-july-august-2009/is-the-shape-of-the-earth-changing/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Wed, 01 Jul 2009 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 70 (July - August 2009)]]></category>
		<category><![CDATA[caused]]></category>
		<category><![CDATA[change]]></category>
		<category><![CDATA[decrease]]></category>
		<category><![CDATA[due]]></category>
		<category><![CDATA[earth]]></category>
		<category><![CDATA[geoid]]></category>
		<category><![CDATA[grace]]></category>
		<category><![CDATA[gravity]]></category>
		<category><![CDATA[mass]]></category>
		<category><![CDATA[melting]]></category>
		<category><![CDATA[reservoir]]></category>
		<category><![CDATA[result]]></category>
		<category><![CDATA[satellite]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[scientists]]></category>
		<category><![CDATA[shape]]></category>
		<category><![CDATA[surface]]></category>
		<category><![CDATA[systems]]></category>
		<category><![CDATA[variations]]></category>
		<category><![CDATA[water]]></category>
		<category><![CDATA[weight]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/2009/issue-70-july-august-2009/is-the-shape-of-the-earth-changing/</guid>

					<description><![CDATA[The Earth&#8217;s shape is becoming rounder as a result of the construction of projects like the Three Gorges reservoir. The weight decrease due to the melting icecaps has played a major role in these changes. From time immemorial, humanity has wondered about the shape of the Earth. Over the centuries countless studies exploring the Earth [&#8230;]]]></description>
										<content:encoded><![CDATA[<blockquote>
<p><em>The Earth&#8217;s shape is becoming rounder as a result of the construction of projects like the Three Gorges reservoir. The weight decrease due to the melting icecaps has played a major role in these changes.</em></p>
</blockquote>
<p>From time immemorial, humanity has wondered about the shape of the Earth. Over the centuries countless studies exploring the Earth and its shape have been conducted, and they still continue today. With advancements in technology, the methods and measuring devices have constantly changed. In earlier periods the Earth was believed to be flat; nevertheless from around the fifth century bc there were varying opinions suggesting that the Earth was actually round and calculations were conducted to measure its radius. Particularly from the seventh century ce onwards, the number of studies regarding what the Earth really looked like have increased tremendously.<sup>1</sup></p>
<p><span id="more-1047"></span></p>
<p>In later years, with the advent of Islam and its open encouragement of Muslims to explore the universe and make advances in science, Muslim scholars made huge progress in astronomical research. Historians who have studied these advancements in astronomical science agree that the era between the eighth and fourteenth centuries can aptly be designated as a period of Islamic astronomy. In the years following the sixteenth century, significant research was undertaken in relation to the shape of the Earth and measurements of its radius in both the Islamic world and the West.</p>
<p>In the eighteenth century astronomic research and the advancement of technology proved not only that the Earth was round, but that it had a distinctive shape. According to calculations, the Earth was bulging around the equator and flattened at the poles. The maps produced by satellite systems show that the Earth is not completely round or smooth, but rather it has protrusions, creating an uneven surface that resembles a face with spots.2</p>
<p>&#8220;Geoid&#8221; is the term scientists prefer to use when referring to the physical depiction of the Earth&#8217;s surface. The shape of the Earth is not a perfect ellipsoid, thus, scientists use this representative surface that is thought to be most approximate to sea level, in order to identify departures from the ellipsoid shape. Due to the events of nature and human-related factors the geoid constantly changes, and this is why a precise mathematical account of the geoid has not yet been possible.</p>
<p>The Earth is known to be a geologically active planet. Just as everything else in the universe, from atoms to galaxies, has not been left to their own fate, the Earth is also constantly being transformed, thus making our magnificent ecosystem possible. The continuous geological process of changes in the Earth&#8217;s crust is related to a variety of factors: the varying density of the rock layers which form the Earth&#8217;s crust, the activity of the tectonic plates, as well as the movement of the continents, shifts in the center of gravity, tidal activity, hydro-spherical and atmospheric phenomena, and human intervention in some regions.</p>
<p>Researching the variations in the gravity of the Earth with satellite systems is a relatively new method of recording the changes in geoid elevations. The distance between the center of the Earth and its surface is constant (the tallest mountains will rise or decrease 1-2cm per year at most); if we take into consideration that the Earth&#8217;s physical body does not vary much and disregard the other forces, then we can say that the main reason for these infinitesimal changes in gravity on the surface of the Earth is due to differences in mass. While there is a decrease in weight in specific regions from melting glaciers, in other areas there is an increase in weight due to melting water flowing into reservoirs; both these phenomena play a significant role in the variations of the Earth&#8217;s gravity.</p>
<p>Even a minor variation in mass can be detected by measuring gravity. The change of mass location on the Earth&#8217;s surface results in gravity variations in the same region; in brief, today the commonly used gravity measurements are the most important source for detecting and identifying variations in geoid elevations, as well as determining the actual reasons for these changes. Gravity measurements are conducted via satellite systems; these indicate changes in mass location by detecting an increase or decrease in weight. The most modern technological satellite systems that can detect gravity change and allow us to follow the variations in masses on the Earth&#8217;s surface are the satellite used by the European Space Agency, called GOCE, and NASA&#8217;s satellite, called GRACE. GOCE has been designed to perform accurate studies of the Earth&#8217;s gravity field as it progresses into orbit. As the satellite passes over the regions where gravity is intense or weak, it measures the variations in gravity with signals that have been conveyed by a device called a gradiometer. GRACE is a pair of identical satellites that are flying in the same orbit, 136 miles apart; they orbit the Earth at a distance of 300 miles. These satellites can measure distances with microwave signals, and can detect changes of less than 1% the thickness of human hair; thus the twin satellites are able to accurately measure the distance to the surface of the Earth. The measurements provided by this satellite system make it possible for changes in gravity to be calculated. The GRACE satellite data is 1,000 times more accurate than other gravity field detection systems.</p>
<p>The enormous waves that occurred on the sea surface as a result of the Sumatra Island earthquake, which measured 9 on the Richter scale, caused a level ridge, measuring about six meters in height, to form on the shore. According to data produced by GOCE, such changes in the mass of the Earth&#8217;s surface caused a variation of 18 mm to occur on the geoid; this is recognized as a relatively high degree of change.</p>
<p>Changes in the polar glaciers also cause variations in the geoid; data provided from satellite GRACE shows that the layers of ice in Greenland and the Antarctica are melting at a higher rate than previously expected. The melting icebergs are causing a rise in sea levels of up to 0.41 mm every year and the weight of water produced from the melting icecaps is causing changes to the shape of the Earth&#8217;s surface.3</p>
<p>One of the interesting facts attained by GRACE is the changes in the Earth&#8217;s gravity field that have been caused by Three Gorges in China, the largest reservoir ever built. The lake region of the reservoir that is being built measures around 372 miles long, 70 miles wide and approximately 574 feet deep; when the casing of the reservoir is completed it will house an amazing 39.3 billion m3 (9.4 cu mi) of water. The area that this reservoir will cover once the project is completed is so great that it will make an estimated 1.5 million people homeless. It has been observed that the enormous accumulation of water in the completed sections of the reservoir has increased the gravity level in that region, which in turn has caused changes in the geoid structure.4</p>
<p>Scientists have confirmed that the Earth&#8217;s shape is becoming rounder as a result of the construction of projects like the Three Gorges reservoir. It is also estimated that the weight decrease due to the melting icecaps has played a major role in these changes. In some regions of Scandinavia and Canada the ground is rising 1 cm every year due to the melting glaciers. The water produced from the melting glaciers is forcing the currents in the Atlantic Ocean towards the equator, while the decrease of mass at the poles and the increase of weight in the equator region have caused significant changes in the shape of the Earth.</p>
<p>Many scientists claim that changes in the Earth&#8217;s surface have been caused by changes in the climate. Unfortunately, according to a report published by the UN Intergovernmental Panel on Climate Change (IPCC), humans are responsible for 90% of global warming. As a result of these vast variations, the geoid shape of the Earth is becoming rounder and its radius is increasing annually by 0.4–0.8 mm. The reasons for these changes are being closely monitored by scientists. According to scientists, the variation of the geoid that has been caused by changes in mass location is having an effect on the Earth&#8217;s dynamics, with the transfer of mass demonstrated by the changes in gravity causing a reduction in the speed of the Earth&#8217;s rotation around its axis; this is expected to result in variations in the daily time-zone.</p>
<p><em>Abdullah Sancak is pursuing an academic career in engineering in Turkey.</em></p>
<h3><b>Notes</b></h3>
<ol>
<li>For more information on this topic see James R. Smith, Introduction to Geodesy, The history and Concepts of Modern Geodesy, John Wiley and Sons, Inc., 1997.</li>
<li>There are interesting images that show how the earth looks in the following link: University of Texas Center for Space Research and NASA (7 Haziran 2005) http://www.csr.utexas.edu/grace/gallery/gravity/</li>
<li>G. Ramillien, A. Lombard, A. Cazenave, E. R. Ivins, M. Llubes, F. Remy, R. Biancale, Interannual variations of the mass balance of the Antarctica and Greenland ice sheets from GRACE, Global and Platenary Change 53 (2006) 198-208.</li>
<li>San Shaoan, Institute of seismology, CEA, Wuhan, China, Gravity change before and after the first water impoundment in Three Gorges Project. http://www.sgg.whu.edu.cn/icct/html/icct_ppt/S1/sun.s.A___fourth.pdf</li>
</ol>
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		<item>
		<title>The Next Great Frontier For Wireless Communication</title>
		<link>https://fountainmagazine.com/all-issues/1999/issue-28-october-december-1999/the-next-great-frontier-for-wireless-communication/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Fri, 01 Oct 1999 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 28 (October - December 1999)]]></category>
		<category><![CDATA[cellular]]></category>
		<category><![CDATA[communication]]></category>
		<category><![CDATA[degrees]]></category>
		<category><![CDATA[earth]]></category>
		<category><![CDATA[gateways]]></category>
		<category><![CDATA[geo]]></category>
		<category><![CDATA[global]]></category>
		<category><![CDATA[globalstar]]></category>
		<category><![CDATA[iridium]]></category>
		<category><![CDATA[located]]></category>
		<category><![CDATA[miles]]></category>
		<category><![CDATA[phone]]></category>
		<category><![CDATA[satellite]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[services]]></category>
		<category><![CDATA[system]]></category>
		<category><![CDATA[systems]]></category>
		<category><![CDATA[wireless]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/1999/issue-28-october-december-1999/the-next-great-frontier-for-wireless-communication/</guid>

					<description><![CDATA[There has been an explosive growth in the use of wireless communication systems in recent years. The demand for such wireless services as mobile cellular telephony, radio paging, and other personal communication devices has been spiraling steadily upward. It is projected that by 2001, there will be nearly 300 million wireless subscribers throughout the world. [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>There has been an explosive growth in the use of wireless communication systems in recent years. The demand for such wireless services as mobile cellular telephony, radio paging, and other personal communication devices has been spiraling steadily upward. It is projected that by 2001, there will be nearly 300 million wireless subscribers throughout the world. Even while the wireless industry of the terrestrial cellular market is expanding rapidly, especially in the United States and Europe, there are still an estimated three billion people living in China, India, Pakistan, and the Philippines who have no phone at home due to harsh geographical conditions.</p>
<p>As we approach the new millennium, satellite-based communication systems will be the next frontier for this industry. They will assume a vital role in infrastructure, securing telecommunication links during disasters and supporting humanity&#8217;s space-based efforts.</p>
<p>A new epoch in space-based wireless communications has already begun with the deployment of two low-Earth-orbiting (LEO) communication satellite systems: Iridium and Globalstar. The Motorola-led Iridium consortium successfully launched the last five satellites in its strong network during the last year. The entire Iridium network integrates terrestrial phone systems and satellites.</p>
<p>Several other satellite systems having global or broad geographical coverage will join this new arena within the next 3 to 4 years, thereby complementing and extending existing terrestrial wireless services. Users of conventional terrestrial cellular services, business people, travelers, maritime vessels, aeronautical and industrial facilities, journalists, government agencies, the Coast Guard and emergency-related organizations, others on the go, and people living in sparsely populated areas will be able to communicate with each other via these services.</p>
<p>Satellite-based mobile communication systems are characterized by the distance of their satellites from Earth. LEO satellites are typically located 310 miles (500 kms) to 932 miles (1,500 kms) above the planet, whereas medium-Earth-orbit (MEO) versions are located from 3,100 miles (5,000 kms) to 7,456 miles (12,000 kms) above the planet. Geosynchronous Earth-orbit satellites, located 22,245 miles (35,800 kms) above the equator, move in synchronism with Earth&#8217;s rotation. While GEO satellites seem to be stationary to an Earthbound observer, LEO and MEO satellites appear to be in constant movement.</p>
<h3><b>GEO SYSTEMS</b></h3>
<p>GEO satellites have been used in such commercial communication services as television broadcasting and long-distance telephone trunking, and for maritime communication services since 1965. With the exception of the polar regions, global coverage can be provided by three GEO satellites equally spaced above the equator. In the past, GEO satellites were not viable for hand-held phone communications due to the lengthy signal propagation delay and large power loss. Advances in space technology, however, allow satellites equipped with large-aperture phased array antennas to increase their transmitting power, thereby making the GEO approach viable for delivering telephony to hand-held phones in vast areas of the world.</p>
<p>Several operators have opted for regional GEO systems, which typically require a single satellite. The Asia Cellular Satellite System (ACeS), which is being developed by a three-company consortium from Indonesia, Thailand, and the Philippines, will provide services in 26 Southeast Asian countries, including Japan, China, India, and Pakistan. ACeS&#8217;s satellite, positioned over the equator at 118 degrees east longitude above the island of Borneo, offers mobile phone, facsimile, data, and paging services. Hence, many people in this region who have no access to terrestrial communication links will one day be able to roam anywhere they wish and still keep in touch with each other.</p>
<p>Another regional GEO satellite, Thuraya, will furnish mobile satellite services to 1.8 billion people in 58 countries ranging from the Middle East and North Africa to eastern Europe, Turkey, the Indian subcontinent, and Central Asia. Thuraya will be positioned over the equator at 44 degrees east above the Somali coast. The program, a consortium of 14 telecommunications organizations in various Arab countries, is run out if its headquarters in the Thuraya Satellite Communications Co., located in Abu Dhabi, United Arab Emirates.</p>
<p>The Thuraya system will use a time-division-multiple-access (TDMA) scheme and support 13,750 voice channels. Hughes Network Systems will supply the dual-mode handsets. The satellite will connect calls from users to other users through its 256 reconfigurable spot beams. The company presently envisions an air-time price of US $0.50 per minute for system users.</p>
<h3><b>LEO SYSTEMS</b></h3>
<p>LEO satellites at very low altitudes differ from GEO satellites in two main ways: they are close enough to receive hand-held device signals with a very small propagation delay, and they form cellular towers in the sky. The major disadvantage of LEO systems, when compared with GEO systems, is that they require more satellites with a smaller size and lighter weights to provide global coverage. Complicated ground-based tracking systems are needed to control LEO satellites.</p>
<p>The Iridium system operated by the Motorola-led international consortium of 20 telecommunications and industrial companies is the first LEO system to turn the promise of global wireless service into a reality. By integrating ground-based cellular infrastructures with 66 LEO satellites and thus forming a cross-linked grid 485 miles (780 kms) above the Earth, Iridium provides such global telecommunications as telephony, data, and pager services.</p>
<p>Each satellite in the Iridium constellation rotates around the Earth within a period of approximately 100 minutes at one of the six orbital planes of 86.4 degrees inclination. With one global telephone number and an Iridium satellite phone, you can contact anyone on the planet. The satellite&#8217;s on-board processor processes calls placed by hand-held subscribers or forwarded by gateways and routes to other Iridium satellites in the constellation or to gateways on the ground. This inter-satellite networking capability and direct access of hand-held subscribers to the satellite is a significant distinguishing feature of the Iridium system.</p>
<p>The system operates at four different links and in four different frequency bands. Each satellite in the constellation is connected by radio transmission to four others at frequencies between 23.18-23.38 GHz. Hand-held users can communicate directly with the satellite in the 1.616-1.626 GHz band. Links between the satellite and ground gateways also operate in 19.4-19.6 GHz (downlink) and 29.1-29.3 GHz (uplink) frequency range. Iridium handsets are dual-mode, working both as a typical cellular telephone and as a satellite telephone. Both TDMA and frequency-division-multiple-access (FDMA) technologies are embedded in the handsets, as in cellular GSM handsets. The satellites are controlled by a master control center located in Lansdowne, Virginia, USA.</p>
<p>Iridium launched its final satellites in early May 1998. The system is now operational and offers a wide variety of services to travelers, aeronautical industries, and military and governmental organizations. It provides voice, facsimile, and data communications for the cockpit and at passenger seats across all aviation segments. According to a recent press release by Stratos, an Iridium service provider, the American government had a contract with it and Hughes Global Services to obtain access to multi-network Iridium satellite services.</p>
<p>Another LEO satellite system that will provide global voice and data services is Globalstar. This system is global in nature, except for the polar regions. It is a constellation of 48 satellites orbiting with a period of 113 minutes in eight circular planes, and is inclined at 52 degrees at an altitude of 879 miles (1,414 kms). Global-star&#8217;s satellites are less complicated and cheaper than their Iridium counterparts. They have no on-board processor or intersatellite links (Iridium does), and thus act like well-established reflectors in the sky relaying signals directly to ground gateways. Rather than directly connecting one caller to another by satellite, calls are first routed to gateways and then uplinked to the satellite. The satellite then downlinks this received call to another gateway.</p>
<p>The primary owners of Globalstar are Loral Space and Communications Ltd., and Qualcomm Inc. The system is operated and serviced by 12 telecommunications companies. In order to avoid communication linkage drops, three or four 16-foot to 20-foot (5-meter to 6- meter) dish antennas are installed at Globalstar gateways. Unlike Iridium, Globalstar handsets utilize code-division-multiple-access (CDMA) technology. Globalstar&#8217;s unique capability is that signals from three or four visible satellites are combined at the gateways, and the strongest one is chosen to maximize power efficiency and eliminate call interruption. Therefore, satellites will be seamlessly added to and removed from calls in progress, as they are constantly moving in and out of view. So far, Globalstar has put 24 satellites in orbit. &#8220;With only two more successful launches of four satellites each, Globalstar will have the coverage required to initiate a regional roll-out of service in September,&#8221; says Bernard L. Schwartz, chairman and chief executive officer of Globalstar.</p>
<h3><b>OTHER LITTLE LEOs and MEOs</b></h3>
<p>Other LEOs, notbly Orbcomm and Teledesic, provide such telecommunication services as broadband Internet access, videoconferencing, and multimedia; however, they do not allow phone calls. These satellites are relatively small compared with those of Iridium and Globalstar, and were designed for two-way data communications. Orbcomm is a consortium of Orbital Science Corp., Canada&#8217;s Teleglobe Inc., and Malaysia&#8217;s Technology Resources Industries Bhd. Orbcomm&#8217;s total of 36 little LEOs will travel in two different circular orbits: one is located 460 miles (740 kms) above the Earth with 70 degrees inclination in pair, and the other is located at 523 miles (825 kms) in planes of eight with 45 degrees inclination. The Teledesic system will consist of 288 little LEO satellites in 12 polar orbital planes. It will provide data rates of 64 Mb/s, data rates 2,000 times faster than standard telephone modems. The system&#8217;s operation frequency will be 27.5 GHz in the uplink (from user to satellite), and 28.5 GHz in the downlink (from satellite to user). The company plans to start commercial service in 2002. Its investors are Microsoft founder Bill Gates, cellular phone pioneer Craig McCaw, Boeing, and the AT&amp;T Corp.</p>
<p>ICO Global Communications will feature 10 operational MEO satellites located at an altitude of 6,434 miles (10,355 kms) in 45 degrees and 135 degrees inclined orbits. ICO&#8217;s ground network will consist of 12 ground stations with multiple antennas distributed strategically around the globe. Its gateways will function in ways similar to those of Global- star. The ICO system will launch its full service in 2000. ICO satellites are derived from an existing Hughes GEO satellite, and are four times heavier than Iridium satellites: 6,063 pounds (2,750 kgs) in orbit. ICO satellites travel more slowly than LEO satellites, thereby reducing the need for frequent handovers from one satellite to another.</p>
<p>Ellipso, an MEO system owned by Mobile Communications Holding Inc., Lockheed Martin Corp., Harris Corp., and three others from Australia and South Africa, will become fully operational in 2001. With 17 satellites in three orbital planes, it can provide almost complete global coverage. Seven equally spaced satellites located above the equator at an altitude of 5,008 miles (8,060 kms) will serve a 25 degrees north and a 55 degrees south latitude region. Another 10 satellites will orbit in two elliptical orbits inclined at 116 degrees. Each satellite will be able to handle 3,000 simultaneous phone calls.</p>
<h3><em><b> REFERENCES</b></em></h3>
<ul>
<li>Big LEO/MEO/GEO Market and Financial Review (1998).</li>
<li>Glenister, Simon. &#8220;Iridium to Offer Aeronautical Service.&#8221; Integrating Global Air Traffic Management, ICAO/ISC (June 1998). (See also: www.</li>
<li>iridium.com/english/industry/wero/medialarticle_index.html.)</li>
<li>http://www.globalstar.com.</li>
<li>http://www.iridium.com.</li>
<li>Miller, Barry. &#8220;Satellites Free the Mobile Phone.&#8221; IEEE Spectrum Magazine (March 1998): 26-35.</li>
</ul>
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		<item>
		<title>Outer space: Mankind&#8217;s new frontier</title>
		<link>https://fountainmagazine.com/all-issues/1993/issue-4-october-december-1993/outer-space-mankinds-new-frontier/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Fri, 01 Oct 1993 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 4 (October - December 1993)]]></category>
		<category><![CDATA[‘the]]></category>
		<category><![CDATA[asteroids]]></category>
		<category><![CDATA[countries]]></category>
		<category><![CDATA[earth]]></category>
		<category><![CDATA[gso]]></category>
		<category><![CDATA[islamic]]></category>
		<category><![CDATA[law]]></category>
		<category><![CDATA[mankind]]></category>
		<category><![CDATA[moon]]></category>
		<category><![CDATA[muslims]]></category>
		<category><![CDATA[orbit]]></category>
		<category><![CDATA[outer]]></category>
		<category><![CDATA[potential]]></category>
		<category><![CDATA[resources]]></category>
		<category><![CDATA[satellite]]></category>
		<category><![CDATA[satellites]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[space]]></category>
		<category><![CDATA[states]]></category>
		<category><![CDATA[technology]]></category>
		<category><![CDATA[time]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/1993/issue-4-october-december-1993/outer-space-mankinds-new-frontier/</guid>

					<description><![CDATA[It is barely three and a half decades since the Soviet Sputnik entered orbit in 1957. It was taken that space, long regarded as the last frontier, began to be thought of as the newest area of human dominion. A glance at the history of the ‘space age’ reveals that it was proclaimed from the [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>It is barely three and a half decades since the Soviet Sputnik entered orbit in 1957. It was taken that space, long regarded as the last frontier, began to be thought of as the newest area of human dominion. A glance at the history of the ‘space age’ reveals that it was proclaimed from the outset that space would not be subject to national appropriation, would not became an arena for new colonization and international conflict; rather, the interests of mankind as a whole would prevail over all national and private interests (1967 Outer Space Treaty, Articles 2-4).</p>
<p>This universalistic spirit is explicit in Article I/l of the 1967 Space Treaty: ‘The exploration and use of outer space, including the moon and other celestial bodies, shall be carried out for the benefit and in the interests of all countries… and [outer space] shall be the province of all mankind’. Two years after the Treaty was formally signed, the American astronauts broadcast the same message from the moon. When Neil A. Armstrong landed on the moon, he saw the new frontier as open not only to space-faring states, but to all mankind: ‘one small step for man, leap for mankind.’</p>
<p>In the quarter century since then, the rapid growth of aerospace technology, thanks to the Cold War between the then two super powers, has led to remarkable achievements and technological spin-offs. However, for most of that period space technology and science were largely focused or directed to the production of weapons of mass destruction. The end of the Cold War should herald a new era in which existing aerospace technology will only be used for ‘the benefit of all mankind’ and only ‘for peaceful purposes’ (Walter, 1985, pp.l20).</p>
<p>In the new post Cold War the Russians and the Americans, once rivals, have begun to pool their brain power and hardware with the aim of building space stations in orbit around the earth, then on the moon, finally on Mars (Time, 19 April 1993, pp.62-3). The European Space Agency (ESA) has already laid down its long-term space programmes that are to lead Europe’s space efforts into the 21st century (Von der Dunk, 1989, p.426). Japan, China, Brazil, India, Israel and even Australia have achieved significant satellite technology and launching capability through independent efforts (for an account of those programmes, see Gatland, 1989). They all aim to explore and exploit the natural resources and potential usage of space.</p>
<p>Within ‘peaceful’ uses and exploration of outer space, there are a wide range of possible activities related to scientific research and experimentation, remote sensing, telecommunications and commercial aerospace manufacturing (Tennen, 1979). It is worth considering the benefits that God, the All-Mighty, has made available to man in space.</p>
<h3><b>A) Satellites</b></h3>
<p>The first major benefit is satellite communication. Telecommunication and especially direct broadcasting satellites can only be located in an exceptional orbit known as the geostationary satellite orbit (the GSO). This orbit is a three-dimensional corridor lying on the equatorial plane, at a distance 36,000 km (22,300 miles) above the surface of the earth. The importance of this orbit is that satellites rotate in the same direction as the earth does every 24 hours. That is to say, if satellites follow an equatorial path in the direction of the earth’s rotation, they will appear to remain fixed at the same spot above the equator.</p>
<p>The GSO facilities those services such as direct broadcasting satellites, navigational aids and solar energy stations which require round-the-clock coverage of a given area of earth (Wihlborg and Wijkman, 1979, pp.2S-6). The great advantage of the GSO for communication purposes is that one satellite can observe approximately 40 per cent of the surface of the planet, which means that three satellites are enough for global coverage.</p>
<p>However, the GSO is a physically limited natural resource. Satellites located in orbital slots wander around 100 miles horizontally. Hence, once a satellite occupies a spot in the orbit, it precludes the use of the same slot by any other since slots are located in a three-dimensional tube with a total length of 150,000 miles, the GSO only has room for 1,500 such slots with a zero probability of collision.</p>
<p>However, no one knows exactly how many satellites can occupy the GSO. The orbit is expected, in the very near future, to be used for the gathering and transmission of solar energy from very large space objects to earth by microwave or laser beams (Christol, 1980-81). This will increase the problem of orbital slot scarcity and bring about contentious debates about use of the GSO. There are at present around some three hundred satellites in orbit so the congestion does not present a problem for the time being. However, in the decades to come the GSO will be saturated and there will be no ‘slot’ to locate a new satellite.</p>
<p>Since few states have satellites in the GSO, telecommunication via satellites is a very lucrative business. The overwhelming number of satellites are owned and run by the handful of technologically advanced states. Hence, they earn very significant amounts of money out of these activities. The full-time use of one single channel is around US$ 200,000 per month. A satellite transmitting 100 million message units, for example, earns $1 million each day.</p>
<p>Apart from broadcasting and communication satellites, there are observation satellites rotating vertically and horizontally around the world keeping their owners informed about weather, ocean conditions, catastrophes, pollution levels, atmospheric changes, the kinds and conditions of agricultural crops, the position of hidden minerals and fossil fuels (Schneider, 1986).</p>
<h3><b>B) Mining </b></h3>
<p>The samples collected by the Apollo showed that lunar soil contains, as percentages, 41.3 oxygen, 21.6 silicon, 15.3 iron, 5.4 aluminium, 6.8 magnesium, 0.1 potassium. There are also traceable amounts of sodium, sulphur, hydrogen, nitrogen, copper, zinc and lead in the samples collected (Bille, 1990, p.109). Out of these lunar materials, various minerals and metals, alloys, cement, electrical conductors, glass, silicone resins, rocket propellants and numerous industrial chemicals could be produced. One study concluded that hydrogen and oxygen, stored in lunar rocks, could be used to make air, water and rocket fuel. It is also said that the moon is rich in helium-3, which, almost non-existent on earth, may be usable as an ideal fuel for fusion power plants because of its low radioactivity (ibid., p.110).</p>
<p>Apart from the moon’s rich resources, asteroids are seen as extremely valuable celestial bodies. Scientists have found that there are dozens of mineral-rich asteroids circumnavigating the earth. These asteroids are on average 500 metres across and made of solid nickel-iron. Just one such asteroid could possibly meet years of global demand for these elements. Scientists reckon that asteroids within the vicinity of the earth contain abundant amounts of nitrogen, hydrogen and free metals. It is technologically feasible to process these asteroids on an industrial scale in outer space, more easily than exploitation of the moon’s resources. Such extraterrestrial production could avert earthbound pollution and potential conflicts over scarce earth resources (Condora, 1984, p.178). It was estimated in the 1980s that an asteroid could be worth five billion dollars. It is also projected that asteroids would be processed in outer space for extraterrestrial construction of space stations.</p>
<h3><b>C) Space manufacture</b> </h3>
<p>Although satellite communications and remote sensing are already very profitable commercial enterprises, space manufacturing is thought to have even greater commercial potential. As space is a relatively dust-free, micro gravity environment, it offers a unique laboratory setting for the development and processing of some complicated chemicals, pharmaceuticals, semi-conductor crystals, glass and metal alloys-indeed, production under micro gravity conditions is estimated to be up to 500 hundred times that possible on earth and with a degree of purity unobtainable on earth (Jericho and McCracken, 1986, p.802).The potential market sales for such products is reckoned at around $20 billion annually.</p>
<p>Additionally the relatively uncontaminated space environment is an ideal place for growing crystals used in computers, optoelectronics and ultrasonic equipment; for developing floride glass used in laser and fibre optic applications; and for producing new metal alloys as well as metals of higher purity and structural uniformity (ibid., p.803). In sum, the horizons for potential use of space are immeasurable.</p>
<h3><b>The Islamic countries and space activities </b></h3>
<p>Our concern is to find out what the Muslims are doing or not doing in the face of the continued progress of the space-faring Christians (NASA, ESA), the Jews (Israel), the Buddhists (People’s Republic of China, Japan), the Hindus (India). It was declared at the beginning of the ‘space age’ that space would be a province all mankind. However, it is apparent that it is only the technologically advanced non-Muslim states who are ploughing in huge sums of money into aerospace technology and enjoying the benefits of the outer space environment. Muslims in general seem unaware of the fact that it is enjoined upon them to keep abreast of the latest science and technology and to be as equipped as the non-Muslims. For example, in Sura al-Mulk, God directs our attention to the Heavens:</p>
<p><em>‘He who created the seven one above another: you will see no want of proportion in the creation of the Most Gracious, so turn your sight again: Do you see any flaw? Again turn your vision a second time; your sight will return to you dim and discomfited, in a state worn out’ (67.3-4. See also 7.54; 13.2; 21.33; 36.40;51.7; 81.15.) </em></p>
<p>In the light of this encouragement, the Arab Muslims, from very the beginning of Islamic civilization reached the highest degree in astronomy. While the pre-Renaissance Christians thought the world flat, Muslims realized that it must be round and that it rotates on its axis. The Muslims in the Abbasid period detected many stars and constellations and gave names to them which are still used (See, for more information, Sharh al-Mawaqif and Ma‘rifatname by Ibrahim Haqqi of Erzurum; also, al-Hayat by Nur al-Din Batruji,d.1185).</p>
<p>Until the decline of the Ottoman Empire, Islamic scholars had been for centuries at the leading edge of study in astronomy as well as other pure and applied sciences. Even as late as the last 19th century, astronomy was an essential subject in the curriculums of the Ottoman colleges. However, some narrow-minded Muslims decried the teaching of scientific knowledge in schools and prevented Muslims from education. Their efforts were one (though not the only) reason for the relative decline of the Oriental world. This attitude degenerated further into the sinister view that any non-Muslim knowledge or equipment makes a person an unbeliever.</p>
<p>Vestiges of this barbarism remain to this day. To give an anecdote: I know of an imam who was recently accused by some peasants of being an unbeliever simply for informing them during a sermon delivered in their village that human beings had landed on the moon.</p>
<p>On the other side, Western propaganda has persistently labelled Islam as ‘backward’ and ‘unenlightened’, and imposed a feeling of inferiority among many Muslims-so that they find themselves thinking-‘The non-Muslims have walked on the moon, while we still walk barefoot on the earth.’ For over a century and a half, Muslims have been deliberately kept behind Western achievements. But the trust (amana) that God has bestowed upon mankind is most particularly the responsibility of the believers, the Muslims. Are we ready to live up to it?</p>
<p>God declares in the Qur’an: Before this We wrote in the Psalms, after the Message (given to Moses ): My servants, the righteous, shall inherit the earth. No one should doubt that one day this truth guaranteed by God’s oath will come true. An eminent Islamic scholar has read this verse to mean that the human stewardship will not be confined to the earth. Rather, those who become the trustees and masters of the earth will also rule over the remotest parts of the skies (Sahin, 1993). Naturally, such rule depends upon qualifications and quality. It is essential therefore that Muslims acquire the qualities demanded by the only Owner of the heavens and the earth. Even, this promise will come true to the degree that Muslims do acquire the requisite qualities (ibid.).</p>
<p>Are the Muslims indeed striving to get the requisite qualities? To a certain degree, yes. After the emancipation from the years of colonization, Islamic countries (particularly Indonesia, Pakistan, Iraq and Iran) began to educate their own experts in sophisticated technology. But colonization has been followed by a brain drain. Thus, it is reported that there are considerable numbers of Turkish scientists working in NASA’s space programmes.</p>
<p>With regard to space technology, there are incipient attempts by the Islamic countries. One such attempt is the Arab Satellite Communication Organization (ARABSAT). The Charter of the Organization was signed by twenty one Arab States in 1976. ARABSAT is intended to fulfil the aspirations of the Arabs have their own satellite system as a tool for socio-economic development of the region and for bringing about the transfer of technology. The ARABSAT space segment is composed of two satellites launched in 1985 and 1992, and located on the GSO at 19’E and 26’E respectively. But the organization does not have its own launching pads. Hence, it is dependent upon either the European Ariane or the US Space Shuttle. In addition to this, two Turkish Satellites will soon be sent to the GSO. TURKSAT project will be an important milestone in the communication of Turkic and Islamic countries.</p>
<p>Surely, the achievements of ARABSAT and TURKSAT are not promising in terms of scope and infrastructure. Islamic countries need to pool their scientific, technological and, more importantly, financial resources to set up an Islamic aerospace organization. Arab petro-dollars are wasted in Western banks when they could be channelled into this potentially lucrative area. The break-up of the USSR is an extremely good opportunity for the fledging Turkic Republics to collaborate with other Islamic states. The launch pads of the former Soviet Union were set up in Kazakhstan. Today the Kazakhs are waiting for customers. In the CIS, as Mikhail Osin said: ‘the pay of those who build spaceships is lower than that of a floor sweeper’ (Lemonick, 1993). The petrol-rich Arab countries could and should attract the space-engineers of Muslim states to work in the establishment of Muslim space programmes&#8230;</p>
<p>In conclusion, unless Muslims are prepared to face up to the necessities of the post-industrial era and to the requirements of a new century by investing their wealth on intellectual property and technology, never will the present Muslims walk on the moon, while the Christians will be left free to exploit the resources of the Universe not for the benefit of all mankind, but their own benefit at the expense of others. But, when God’s promised time due, the Crescent will surely embrace the stars.</p>
<h3><b><em>References</em></b></h3>
<ul>
<li>BILLE, M.A. (1991) ‘The law of space resources: exploiting the final frontier’ in Fauchnan and Mayniak (1991).</li>
<li>CHRISTOL, C.Q. (1980-81) ‘International space law and use of natural resources: solar energy’, Revue Belge de Droit Internationale, 15, pp.28-52.</li>
<li>CONDORA, C. (1984) ‘Outer space like the sea and air, whose frontier? Incredible potential with inscrutable obstacles’, Houston Journal of international Law, 6, pp.175-96.</li>
<li>FAUCHNAN, B. and MAYNIAK, G. (eds) (1991) Space Manufacturing: Energy Materials from Space, American Institute of Aeronautics and Astronautics.</li>
<li>GATLAND, K. (1989) Space Diary, Crescent Books, New York.</li>
<li>JERICHO, E. &amp; MCCRACKEN, D.G (1986) ‘Space law: is it the last legal frontier?’ Journal of Law and Commerce, 51, pp.791-808.</li>
<li>LEMONICK, (1993) ‘NASA’s plea: Help’ Time (April 19), p.63</li>
<li>SAHIN, M.F. (1993) ‘Yeryuzu Mirascilari’ (The inheritors of the earth) Yeni Umit, 19, pp.l-2.(in Turkish)</li>
<li>SCHNEIDER, A.R.H. (1986)’Remote sensing of the earth from space’ Environmental Policy and Law, 16 (2), pp.50-9.</li>
<li>TENNEN, L.I. (1979) ‘Outer space: a preserve for all humankind’, Houston Journal of International Law, 1, pp.145-58.</li>
<li>UNITED NATIONS (1992) ‘Space Activities of the United Nations and International Organizations’, UNO, New York</li>
<li>Von der DUNK, F.G. (1989) ‘ESA and EC: two captains on one spaceship?’ Proceedings of the 32nd Colloquium on the Law of Outer Space, pp.426-35.</li>
<li>WELTER, D., (1985) ‘The peaceful purpose standart of the common heritage of mankind principle in outer space law’ ASILS International Law Journal, 9, pp.117-146.</li>
<li>WHITE, W.N. (1991), ‘Mining law for outer space’ in Fauchnan and Mayniak 1991.</li>
<li>WIHLBORG, C.G., &amp; WIJKMAN, P.M. (1979) ‘Outer space resources in efficient and equitable use; new frontiers for old principles’ The Journal of Law and Economics, pp.23-43.</li>
</ul>
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