News tagged with orbit

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Mars hills hide icy past

A complex network of isolated hills, ridges and small basins spanning 1400 km on Mars is thought to hide large quantities of water-ice.

Feb 19, 2015
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Against the current with lava flows

Primeval lava flows formed the massive canyons and gorge systems on Mars. Water, by contrast, was far too scarce on the red planet to have cut these gigantic valleys into the landscape. This is the conclusion ...

May 12, 2014
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The origins of local planetary orbits

A plutino is an asteroid-sized body that orbits the Sun in a 2:3 resonance with Neptune. They are named after Pluto, which also orbits the Sun twice for every three orbits of Neptune. It is thought that Pluto ...

Oct 01, 2014
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NOAA's DSCOVR going to a 'far out' orbit

Many satellites that monitor the Earth orbit relatively close to the planet, while some satellites that monitor the sun orbit our star. DSCOVR will keep an eye on both, with a focus on the sun. To cover both ...

Jan 26, 2015
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Views of Venus day and night side

This sequence of images was taken by the Ultraviolet/Visible/Near-Infrared spectrometer (VIRTIS) on board ESA's Venus Express spacecraft between 12 and 19 April 2006, during the first orbit (capture orbit) ...

May 19, 2014
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The case for a mission to Mars' moon Phobos

Ask any space enthusiast, and almost anyone will say humankind's ultimate destination is Mars. But NASA is currently gearing up to go to an asteroid. While the space agency says its Asteroid Initiative will ...

Oct 02, 2014
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