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Artificial satellites and space probes in the 1980s Year Origin Name Target Status Description 1980 US: Solar Maximum Mission: Sun: Failure: Solar Maximum Mission solar probe succeeded after being repaired in Earth orbit 1981 India: Bhaskara-2: Earth: Success: Bhaskara-2 satellite; launched on Russian Kosmos-3M rocket for ISRO Soviet Union ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Objects intentionally placed into orbit This article is about human-made satellites. For moons, see Natural satellite. For other uses, see Satellite (disambiguation). Two CubeSats orbiting around Earth after being deployed from the ISS KibÅ module's Small Satellite Orbital Deployer A ...
The 5,900 kg (13,000 lb) satellite was deployed from the Space Shuttle Discovery during the STS-48 mission on 15 September 1991. It was the first multi-instrumented satellite to study various aspects of the Earth's atmosphere and have a better understanding of photochemistry. After 14 years of service, the UARS finished its scientific career in ...
Gravitational accelerations at L 4. The Hill sphere is the region in which an astronomical body dominates the attraction of satellites. Of the Solar System planets, Neptune and Uranus have the largest Hill spheres, due to the lessened gravitational influence of the Sun at their far orbits, however all of the giant planets have Hill spheres in the vicinity of 100 million kilometres in radius.
On October 4, 1957, the Soviet Union launched Sputnik 1, the first artificial satellite of Earth in the history of humankind. Explorer 1 satellite, the third Satellite put into orbit, and the first by NASA. On November 3, 1957, the Soviet Union launched the second satellite, Sputnik 2, and the first to carry a living animal into orbit, a dog ...
Operation Moonwatch was the most successful amateur activity of the IGY and it became the public face of a satellite tracking network that expanded the Smithsonian's global reach. Whipple used satellite tracking as a gateway for his observatory to participate in new research opportunities that appeared in the early years of space exploration.
Elon Musk's space exploration company, SpaceX, plans to launch up to 42,000 satellites into orbit to beam internet down to remote parts of the Earth. SpaceX has already put close to 200 Starlink ...
The first images from space were taken on the sub-orbital V-2 rocket flight launched by the US on October 24, 1946. Satellite image of Fortaleza.. Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world.