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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.
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.
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.
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
Lunar and Planetary Science
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
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.
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.