News tagged with earth atmosphere

NASA spacecraft completes 40,000 Mars orbits

NASA's Mars Reconnaissance Orbiter passed a mission milestone of 40,000 orbits on Feb. 7, 2015, in its ninth year of returning information about the atmosphere, surface and subsurface of Mars, from equatorial to polar latitudes.

dateFeb 11, 2015 in Space Exploration
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Isotopic memory of atmospheric persistence

Chemical analysis of some of the world's oldest rocks, by an international team led by McGill University researchers, has provided the earliest record yet of Earth's atmosphere. The results show that the air 4 billion years ...

dateJan 15, 2015 in Earth Sciences
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