(Phys.org) —Tantalized by images from NASA's Hubble Space Telescope and ground-based data, scientists thought the giant asteroid Vesta deserved a closer look. They got a chance to do that in 2011 and 2012, when NASA's Dawn ...
Space Exploration
Sep 30, 2013
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The solar system is crowded with small objects like asteroids and comets. Most have stable orbits which keep them out of harm's way, but a small proportion of them are in orbits that risk them colliding with planets.
Astronomy
Sep 14, 2013
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Recent observations of Jupiter's moon Io has revealed a massive volcanic eruption taking place 628,300,000 km (390,400,000 miles) from Earth. Io, the innermost of the four largest moons around Jupiter, is the most volcanically ...
Space Exploration
Aug 26, 2013
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(Phys.org) —Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas—5,000 light-years long—as it is ejected ...
Astronomy
Aug 22, 2013
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(Phys.org) —Scientists have created the first global topographic map of Saturn's moon Titan, giving researchers a valuable tool for learning more about one of the most Earth-like and interesting worlds in the solar system. ...
Space Exploration
May 15, 2013
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This large "flying V" is actually two distinct objects—a pair of interacting galaxies known as IC 2184. Both the galaxies are seen almost edge-on in the large, faint northern constellation of Camelopardalis (The Giraffe), ...
Astronomy
Feb 18, 2013
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(Phys.org)—'Tis the season for holiday decorating and tree-trimming. Not to be left out, astronomers using NASA's Hubble Space Telescope have photographed a festive-looking nearby planetary nebula called NGC 5189. The intricate ...
Astronomy
Dec 18, 2012
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(Phys.org)—Astronomers were puzzled earlier this year when NASA's Hubble Space Telescope spotted an overabundance of dark matter in the heart of the merging galaxy cluster Abell 520. This observation was surprising because ...
Astronomy
Nov 29, 2012
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(Phys.org)—The NASA/ESA Hubble Space Telescope has produced a sharp image of NGC 4634, a spiral galaxy seen exactly side-on. Its disk is slightly warped by ongoing interactions with a nearby galaxy, and it is crisscrossed ...
Astronomy
Sep 24, 2012
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On September 11, 1997, the Mars Global Surveyor slipped into orbit around the Red Planet. Like JPL's Mariner and Viking missions before it, MGS (as it was affectionately known) fundamentally changed our view of Mars. First ...
Space Exploration
Sep 13, 2012
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