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(See Other moons of Earth and Quasi-satellite.) Mars has two known moons , Phobos and Deimos ("fear" and "dread", after attendants of Ares , the Greek god of war, equivalent to the Roman Mars). Searches for more satellites have been unsuccessful, putting the maximum radius of any other satellites at 90 m (100 yd).
One of the most powerful online tools at your disposal is the sprawling Google Earth project, which allows you to use satellite imagery to view a three-dimensional representation of the planet ...
The first Misty satellite, USA-53, was released by the Space Shuttle Atlantis on mission STS-36 in 1990. The USA-144 satellite, launched on 22 May 1999 by a Titan IVB from Vandenberg Air Force Base may have been a second Misty satellite, [53] or an Enhanced Imaging System spacecraft. The satellites are sometimes identified as KH-12s.
Amazônia-1 is the first Earth observation satellite developed by Brazil, helped by Argentina's INVAP, who provided the main computer, attitude controls and sensors, and the training of Brazilian engineers,[8] and launched at 04:54:00 UTC (10:24:00 IST) on 28 February 2021.
Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, were metalized balloon satellites acting as passive reflectors of microwave signals.
Horizons-3e, also known as IS-H3e, is a high throughput geostationary communications satellite ordered by Horizons Satellite, a joint venture of Intelsat and SKY Perfect JSAT Group. The spacecraft is designed and manufactured by Boeing on the Boeing-702MP platform.
Ionospheric Connection Explorer (ICON) [6] was a NASA satellite designed to investigate changes in the ionosphere of Earth, the dynamic region high in the atmosphere where terrestrial weather from below meets space weather from above.
USA-247, also known as NRO Launch 39 or NROL-39, is an American reconnaissance satellite, operated by the National Reconnaissance Office and launched in December 2013. The USA-247 launch received a relatively high level of press coverage due to the mission's choice of logo, which depicts an octopus sitting astride the globe with the motto "Nothing Is Beyond Our Reach". [2]