
Warmth and flowing water on early Mars were episodic
Ample evidence of ancient rivers, streams, and lakes make it clear that Mars was at some point warm enough for liquid water to flow on its surface. While that may conjure up images of a tropical Mar ... more
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Geologic Maps of Vesta from NASA's Dawn Mission Published
Images from NASA's Dawn Mission have been used to create a series of high-resolution geological maps of the large asteroid Vesta, revealing the variety of surface features in unprecedented detail. T ... more
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Ex-US climate envoy: Trump threatening 'consensus science' worldwide
How did an Indian zoo get the world's most endangered great ape?
Australian scientists grapple with 'despicable' butterfly heist
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Soyuz Installed at Baikonur, Expected to Launch Wednesday
The Soyuz-2.1A carrier rocket has been successfully installed at the launch site at the Baikonur Cosmodrome in Kazakhstan and is scheduled for launch on October 29, the press service of the Russian ... more
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How Satellite Laser Ranging Got its Start 50 Years Ago
Fifty years ago, NASA announced the first successful tracking of a satellite using a laser, a technique now standard for precisely determining satellite orbits.
The landmark experiments were c ... more
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Mars, too, has macroweather
Weather, which changes day-to-day due to constant fluctuations in the atmosphere, and climate, which varies over decades, are familiar. More recently, a third regime, called "macroweather," has been ... more
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Cassini probe measures sea depth on Saturn's moon Titan
According to new radar measurements recorded by NASA's Cassini probe, the largest hydrocarbon sea on Saturn's moon Titan, Kraken Mare, is at least 115 feet deep - and maybe more. ... more
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Comet lander 'working well', but may be on slope
Europe's robot lab Philae was "working well" on the surface of its host comet, though likely perched on a steep slope, ground controllers said a day after the probe made its historic landing. ... more
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