科学研究   

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What a view... The air over here is especially... Wait, what is this doing here? This is WHAT IF, and here's what would happen if another planet smashed into Earth. About 50 billi...

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Steve Mirsky: We’re on the verge of being able to actually analyze the contents of the atmospheres of some of these rocky exoplanets, which could tell us not that they’re inhabited or that there’s a ...

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Lee Billings: He’s a great guy, actually. He is an astrophysicist at the University of California, Santa Cruz. And one thing that’s special about Greg is he is one of the deepest thinkers about thi...

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This is the most powerful object in the Universe. The biggest spinning magnet to ever exist. It's the cosmic equivalent of a great white shark. But it wouldn't eat you. It would just...

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Lee Billings: Maybe if they manage somehow to get through their technological adolescence, that notion of, you know, kind of little kids with nuclear bombs and things like that, really dangerous time...

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Steve Mirsky: Lee, I think a lot of people have heard of the Drake Equation, but what was new to me in reading the book was the story behind the Drake Equation, basically he comes up with it a couple...

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Everybody loves a good sleep, but we probably wouldn't enjoy it as much if we had no control over when it happened. Imagine falling into a deep sleep during a first date, in the middle of ...

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If you have flown on an airplane before, you might have experienced turbulence. Turbulence is a sudden movement of air. It can move the plane around and force sudden changes in height. Flying through...