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NASA Space Science Data Coordinated Archive

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Astro-H, also known as Hitomi or "Eye", an X-ray astronomy collaboration between JAXA and NASA, was launched from the Tanegashima launch facility in Japan on 17 February 2016 at 5:45 p.m. Japan Standard Time (08:45 UTC). More...

ESA's Gaia mission launched successfully on a Soyuz-Fregat rocket from Kourour, French Guiana at 09:12 UT on 19 December 2013. The mission is designed to measure the positions and velocity of roughly 1,000,000,000 stars as well as determine their temperature, composition, and other properties. More...


NASA's launch of the Interface Region Imaging Spectrograph (IRIS) spacecraft took place at 7:27 p.m. on 27 June 2013 (02:27 UT, 28 June) about 100 miles from Vandenberg AFB. More...

Voyager 1 has encountered a region of spacecraft at the edge of our solar system that scientists believe is the last region the spacecraft will have to cross prior to entering interstellar space. More...

Lunar and Planetary Science

NASA announced the two finalists for the fourth New Frontiers mission on Wednesday, December 20. The finalists are the CAESAR sample return mission to comet Churyumov-Gerasimenko, and the Dragonfly lander/drone mission to Titan. A mission will be chosen from these finalists in 2019 for launch in the mid-2020's. For more information, see the 20 December NASA press release.

The OSIRIS-REx spacecraft successfully flew by Earth on 22 September en route to its rendezvous with asteroid Bennu in August 2018. The spacecraft made its closest approach of 17,237 km at 16:52 UT (12:52 EDT). More...

The Cassini spacecraft made its final plunge into Saturn's atmosphere on 15 September 2017, ending its nearly 20-year mission as planned. Loss of signal occurred at 11:55 UT (7:55 a.m. EDT). More...

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