Explore: Einstein Observatory (artificial Satellite)

Einstein Observatory (HEAO-2) was the first fully imaging X-ray telescope put into space and the second of NASA's three High Energy Astrophysical Observatories

This timeline of artificial satellites and space probes includes uncrewed spacecraft including technology demonstrators, observatories, lunar probes, and

Timeline of artificial satellites and space probes List of things named after Albert Einstein X-ray astronomy List of space telescopes#X-ray "Einstein Probe

of observatories have been developed. Interferometers are at the core of gravitational wave detectors. In order to limit the natural or artificial background

Details (Einstein Observatory)". NASA. Archived from the original on 2016-06-12. Retrieved 2008-02-27. "NASA – NSSDC – Spacecraft – Details (Einstein Observatory)"

for the launch of the Soviet Union's Sputnik 1, the world's first artificial satellite. The telescope was the only one able to track Sputnik's booster rocket

Satellite navigation (satnav) or satellite positioning is the use of artificial satellites for navigation or geopositioning. A global navigation satellite

Gaia was a space observatory of the European Space Agency (ESA) that was launched in 2013 and operated until March 2025. The spacecraft was designed for

astronomical observatory, 1 artificial satellite observing station and 1 astronomical instrument developing institute. Yunnan Observatories, CAS, Yunnan

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