News tagged with atmosphere

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What is the upper limit for massive stars?

Yesterday I mentioned that hypernovae (super-supernovae) are the result of the explosion of a star that's about as massive as a star can be (about 150-200 solar masses). But how exactly do we know that t ...

Oct 07, 2014
4.9 / 5 (56) 23

How do we terraform Venus?

It might be possible to terraform Venus some day, when our technology gets good enough. The challenges for Venus are totally different than for Mars. How will we need to fix Venus?

Jul 25, 2014
3.2 / 5 (70) 54

What geology has to say about global warming

Last month I gave a public lecture entitled, "When Maine was California," to an audience in a small town in Maine. It drew parallels between California, today, and Maine, 400 million years ago, when similar ...

Jul 14, 2014
4.4 / 5 (33) 198