News tagged with earth

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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 ...

Jan 15, 2015
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NEOWISE—a yearlong look at the sky

NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) spacecraft discovered and characterized 40 near-Earth objects (NEOs) in the first year after the mission was re-started in December 2013. Eight ...

Jan 20, 2015
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What causes the northern lights?

If you live in the high latitudes, like Alaska, or New Zealand, you've probably had a chance to see an aurora. Here in Canada, we call them the Northern Lights or the Aurora Borealis, but the lucky folks ...

Jan 16, 2015
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Will we mine asteroids?

It's been said that a single asteroid might be worth trillions of dollars in precious rare metals. Will we ever reach out and mine these space rocks? How hard could it be?

Jan 09, 2015
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