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Hubble Spots Interacting Galaxies in Close Encounter
June 20, 2013 — The NASA/ESA Hubble Space Telescope has produced a vivid new image of a pair of interacting galaxies known as Arp 142. When two galaxies stray too close to each other they begin to interact, causing ... > full story -
Metamorphosis of Moon's Water Ice Explained
June 19, 2013 — Using data gathered by NASA's Lunar Reconnaissance Orbiter mission, scientists believe they have solved a mystery from one of the solar system's coldest regions -- a permanently shadowed crater on ... > full story -
Mars Had Oxygen-Rich Atmosphere 4,000 Million Years Ago
June 19, 2013 — Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4,000 million years ago -- well before the rise of atmospheric oxygen ... > full story -
Small Satellites Soar in High-Altitude Demonstration
June 18, 2013 — Four tiny spacecraft soared over the California desert June 15 in a high-altitude demonstration flight that tested the sensor and equipment designs created by NASA engineers and student launch ... > full story -
Asteroids, Comets and Meteors
NASA
Space Policy
Space Exploration
Near-Earth Object Impacts
Space Missions
Finding All Asteroid Threats to Human Populations: NASA Announces Asteroid Grand Challenge
June 18, 2013 — NASA has announced a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them. The challenge is a large-scale effort that will use ... > full story -
Cassini Probe to Take Photo of Earth from Deep Space
June 18, 2013 — NASA's Cassini spacecraft, now exploring Saturn, will take a picture of our home planet from a distance of hundreds of millions of miles on July 19. NASA is inviting the public to help acknowledge ... > full story -
The Turbulent, High-Energy Sky Is Keeping NuSTAR Busy
June 18, 2013 — NuSTAR has been busy studying the most energetic phenomena in the universe. Recently, a few high-energy events have sprung up, akin to "things that go bump in the night." When one telescope catches a ... > full story -
Evidence for Extrasolar Planet Under Construction
June 13, 2013 — The keen vision of NASA's Hubble Space Telescope has detected a mysterious gap in a vast protoplanetary disk of gas and dust swirling around the nearby star TW Hydrae, located 176 light-years away in ... > full story -
Mars Water-Ice Clouds Are Key to Odd Thermal Rhythm
June 12, 2013 — Researchers using NASA's Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but ... > full story -
NASA's Chandra Turns Up Black Hole Bonanza in Galaxy Next Door
June 12, 2013 — Using data from NASA's Chandra X-ray Observatory, astronomers have discovered an unprecedented bonanza of black holes in the Andromeda Galaxy, one of the nearest galaxies to the Milky Way. Using more ... > full story
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