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Rosetta Comet ‘Pouring’ More Water Into Space
There has been a significant increase in the amount of water “pouring” out of comet 67P/Churyumov-Gerasimenko, the comet on which the Rosetta mission’s Philae lander touched down in November 2014. The 2.5-mile-wide (4-kilometer) comet was releasing the earthly equivalent of…
Flooding in Madagascar
Rivers were swollen and brown with sediment in the wake of tropical storm Chadza.
Subglacial Lakes Seen Refilling in Greenland
Scientists using satellite images and data from NASA’s Operation IceBridge have found evidence of a drained and refilled subglacial lake beneath northeastern Greenland’s Flade Ice Cap. This sub-ice body of water is only one of a handful that have been…
Chandra Celebrates the International Year of Light
In many ways, astronomy uses the science of light. By building telescopes that can detect light in its many forms, from radio waves on one end of the “electromagnetic spectrum” to gamma rays on the other, scientists can get a…
Cassini Significant Events 01/14/2015 – 01/20/2015
Cassini is currently orbiting Saturn with a 31.9-day period in a plane inclined 19.1 degrees from the planet’s equatorial plane. The most recent spacecraft tracking and telemetry data were obtained on Jan. 21 using one of the 34-meter diameter Deep…
Gullies on Vesta Suggest Past Water-Mobilized Flows
“Nobody expected to find evidence of water on Vesta. The surface is very cold and there is no atmosphere, so any water on the surface evaporates,” said Jennifer Scully, postgraduate researcher at the University of California, Los Angeles. “However, Vesta…
Kick-Off of New ‘Hubble 25th Anniversary’ Videos
Hubble marks 25 years of observations in April 2015, and that anniversary is in part being celebrated in a new video series.
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