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“Satellites”

Oct 20, 2014 11:35 AM ET // Ian O'Neill
As comet Siding Spring speeds away after its Martian encounter on Sunday, our armada of satellites have reported in to signal that they are OK.
Oct 20, 2014 08:50 PM ET // Ian O'Neill
The HiRISE camera on board NASA's Mars Reconnaissance Orbiter (MRO) has become the first instrument orbiting Mars to beam back images of comet Siding Spring's nucleus and coma. Continue reading →
Oct 14, 2014 11:35 AM ET // Elizabeth Howell, Space.com
The European Space Agency's Rosetta spacecraft has sent home several spectacular images that show a large pyramid-shaped boulder studding the surface of its target comet.
Oct 9, 2014 04:09 PM ET // Ian O'Neill
A tiny region has been spotted in the United States generating an anomalously high concentration of methane, a potent greenhouse gas. Continue reading →
Sep 30, 2014 01:11 PM ET // Ian O'Neill
Cubesats provide a valuable low-cost research space platform for institutions, universities, laboratories and space agencies, but could their use create a new hazard for the increasingly crowded orbital environment? Continue reading →
Sep 22, 2014 07:20 AM ET // Ian O'Neill
Mars just acquired a new orbiting robot buddy. Continue reading →
Sep 15, 2014 10:00 AM ET // Elizabeth Howell, Space.com
The United States military's high-technology branch is hoping to test out on-orbit satellite servicing in orbit in the next five years.
Sep 15, 2014 08:20 AM ET // Irene Klotz
An international team working on an unprecedented mission to orbit and land on a comet will attempt a touchdown on the smaller of the comet’s two lobes, a site tentatively named 'J', Rosetta scientists announced on Monday.
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