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Recent News in...

Astrophysics

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 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...

Heliophysics

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's MESSENGER spacecraft ended its mission as planned with an impact on the surface of Mercury April 30 at 19:26 UT (3:26 p.m. EDT). The estimated impact position was 54.4 N, 210.1 E. A last image was returned shortly before the impact. For more details on the end of the mission, see the MESSENGER News Release.

A study of Ganymede's aurorae using the Hubble Space Telecope has provided the best evidence yet for a subsurface saltwater ocean on Jupiter's largest moon, possibly as thick as 100 km, below a 150 km thick crust. For more, see the NASA Press Release.

The Dawn spacecraft entered orbit around the largest asteroid, Ceres, at 12:29 UT (7:39 a.m. EST) Friday, March 6 and achieved its 13,500 km circular first science orbit on April 23. It will now work its way down to the nominal 380 km science orbit.

 
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