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Astrophysics

NASA's Wide-field Infrared Survey Explorer (WISE) satellite has released data from the first 57% of the sky surveyed during the mission. The satellite went into hibernation in early February 2011, but its discoveries include 20 comets, more than 33,000 asteroids between Mars and Jupiter, and 133 near-Earth objects. More...

The shuttle Atlantis released the Hubble Space Telescope at 08:57 EDT on 19 May 2009 after a successful servicing mission. More...

Heliophysics

On 06 February 2011, STEREO A and STEREO B achieved 180° of separation. This enabled, for the first time, the simultaneous observation of the entire Sun. More...

Lunar and Planetary Science

The Phobos-Grunt and Yinghuo-1 Mars missions, launched together on 8 November at 20:16 UT (3:16 p.m. EST), fell back to Earth on 15 January at approximately 17:45 UT (12:45 EST). The fragments are reported to have all fallen into the Pacific Ocean.

The twin GRAIL spacecraft successfully completed their respective insertion burns and entered orbit around the Moon, GRAIL-A on 31 December 2011 at 22:00 UT (5:00 p.m. EST) and GRAIL-B on 1 January 2012 at 22:43 UT (5:43 p.m. EST). For more, see the NASA Press Release

The Mars Science Laboratory "Curiosity" rover launched successfully on November 26 at 15:02 UT (10:02 EST). The spacecraft will reach Mars in August 2012. For more, see the NASA Press Release