Welcome to the NASA Space Science Data Coordinated Archive, NASA's archive for space science mission data.
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...