First Eurostar Neo satellite launched
The first satellite to be built under ESA's Eurostar Neo program has launched.
Oct 17, 2022
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The first satellite to be built under ESA's Eurostar Neo program has launched.
Oct 17, 2022
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The most popular electric propulsion technologies used for miniature satellites—the Hall Thruster—has major limitations. Now, new research, led by Michael Keidar, the A. James Clark Professor of Engineering at the George ...
Sep 29, 2022
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On the rooftop of an MIT Lincoln Laboratory building sits a 38-foot-wide dome-shaped radio antenna enclosure, or radome. Inside the climate-controlled environment, shielded from the New England weather, a steel structure ...
Sep 6, 2022
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The future of satellite communications is almost upon us. SpaceX has signed a deal with T-Mobile to provide the carrier's customers with text services from its Starlink satellites anywhere in the U.S. starting next year.
Sep 5, 2022
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Elon Musk's SpaceX and T-Mobile are teaming up in an attempt to connect mobile devices through a network of satellites, providing coverage to even the most isolated places.
Aug 26, 2022
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An agreement signed yesterday looks to extend the use of ESA space technology along European roads. The Agency's Navigation Directorate has finalized a Memorandum of Intent with ERTICO, the organization for the European Road ...
Aug 24, 2022
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Satellite operator Eutelsat has sold six of its eight beams—used for data and mobile communications—to organizations including governments and other users. It is expected that the entire satellite capacity will be sold ...
Aug 15, 2022
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Delivering sustainability in traffic is no easy feat. Could software that globally coordinates cars to avoid traffic jams and congestion be the answer?
Aug 2, 2022
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Russia is building a new ground-based laser facility for interfering with satellites orbiting overhead, according to a recent report in The Space Review. The basic idea would be to dazzle the optical sensors of other nations' ...
Jul 27, 2022
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French satellite operator Eutelsat said on Monday it was in talks with British counterpart OneWeb for a tie-up to create a "global champion" in broadband internet, rivaling US services like Elon Musk's Starlink.
Jul 25, 2022
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In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon.
The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957. By 2009 thousands of satellites have been launched into orbit around the Earth. These originate from more than 50 countries and have used the satellite launching capabilities of ten nations. A few hundred satellites are currently operational, whereas thousands of unused satellites and satellite fragments orbit the Earth as space debris. A few space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Venus, Mars, Jupiter and Saturn.
Satellites are used for a large number of purposes. Common types include military (spy) and civilian Earth observation satellites, communication satellites, navigation satellites, weather satellites, and research satellites. Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways. Well-known (overlapping) classes include low Earth orbit, polar orbit, and geostationary orbit.
Satellites are usually semi-independent computer controlled systems. Satellite subsystems attend many tasks, such as power generation, thermal control, telemetry, attitude control and orbit control.
This text uses material from Wikipedia, licensed under CC BY-SA