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NASA GRAIL Lunar Twins Begin Their Last Burn
December 17, 2012 — Ebb and Flow -- the two twin spacecraft of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission -- have begun their final rocket burns. They are scheduled to impact the moon at around 2:28 ... > full story -
Exploding Star Missing from Formation of Solar System
December 17, 2012 — A new study challenges the notion that the force of an exploding star forced the formation of the solar ... > full story -
Rocket Burn Sets Stage for Dynamic Moon Duos' Lunar Impact
December 16, 2012 — The lunar twins of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission have each completed a rocket burn that has sealed their fate. The burns modified the orbit of the formation-flying ... > full story -
NASA Probes Prepare for Mission-Ending Moon Impact
December 13, 2012 — Twin lunar-orbiting NASA spacecraft that have allowed scientists to learn more about the internal structure and composition of the moon are being prepared for their controlled descent and impact on a ... > full story -
Venus Transit and Lunar Mirror Could Help Astronomers Find Worlds Around Other Stars
December 13, 2012 — On June 6, 2012, Venus passed directly between Earth and the sun, in a so-called transit where the planet appears as a silhouette against the solar disk, something that will not happen again until ... > full story -
Mars Rover Curiosity Can Be Positioned With Eclipses
December 13, 2012 — Observations from NASA's Mars rover Curiosity when Mars' moon Phobos crosses in front of the sun, like in September, help us to understand exactly where the rover is on the red planet. Researchers in ... > full story -
Mariner 2's Encounter With Venus: NASA Celebrates 50 Years of Planetary Exploration
December 12, 2012 — Fifty years ago on a mid-December day, NASA's Mariner 2 spacecraft sailed close to the shrouded planet Venus, marking the first time any spacecraft had ever successfully made a close-up study of ... > full story -
Cassini Spots Mini Nile River on Saturn's Moon Titan
December 12, 2012 — Scientists with NASA's Cassini mission have spotted what appears to be a miniature, extraterrestrial likeness of Earth's Nile River: a river valley on Saturn's moon Titan that stretches more than 200 ... > full story -
Mars Rover Self-Portrait Shoot Uses Arm Choreography
December 11, 2012 — The robotic arm on NASA's Mars rover Curiosity held the rover's Mars Hand Lens Imager (MAHLI) camera in more than 50 positions in one day to generate a single scene combining all the images, creating ... > full story -
Mars Rover Curiosity Nearing Yellowknife Bay
December 11, 2012 — The NASA Mars rover Curiosity drove 63 feet (19 meters) northeastward early Monday, Dec. 10, approaching a step down into a slightly lower area called "Yellowknife Bay," where researchers intend to ... > full story
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