News tagged with earth

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New instrument reveals recipe for other Earths

How do you make an Earth-like planet? The "test kitchen" of Earth has given us a detailed recipe, but it wasn't clear whether other planetary systems would follow the same formula. Now, astronomers have found ...

Jan 05, 2015
4.7 / 5 (33) 9

Super-Earths have long-lasting oceans

For life as we know it to develop on other planets, those planets would need liquid water, or oceans. Geologic evidence suggests that Earth's oceans have existed for nearly the entire history of our world. ...

Jan 05, 2015
4.9 / 5 (45) 4

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
5 / 5 (4) 0

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
5 / 5 (5) 1

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
4 / 5 (14) 10