科学研究   

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The Earth may not be our home forever. Eventually, we may have to leave. What if instead of finding a potentially habitable exoplanet light-years away, we stayed in our Solar System a...

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Is the universe infinite? Does it have an edge? And if so, what would you see if you went there? Today we know that the universe had a beginning 14 billion years ago and that it's been exp...

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Kent Redford: So much of this conversation to so far has been about species, and that is the thing that attracts people a lot to this issue of de-extinction and bringing back species and what ha...

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What Earth do you live on? A round one? Flat one? What about a hollow Earth? Just a planet's shell levitating around absolutely nothing. How would the laws of physics work on that holl...

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Steve Mirsky: Now, what do we have to, as conservationists, then watch out for? What – when do you – where do you put the line where there's stuff that we shouldn’t be doing? Kent Redford: ...

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After the first level of testing only thirteen remained, including Jerrie Cobb.The youngest among them was twenty-one-year-old Wally Funk who was also a competitive skier.Forty-year-old Jane Hart was ...

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Kent Redford: So then when we ask this question about bats and hybrids, we have to be very careful about contrasting our own desire to order the world in ways that allow us to deal with it, with...

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You can do anything! Paint a masterpiece in a minute, learn every language in an hour, build a multi-billion dollar company overnight, and rule the world by tomorrow! So, what’s holdin...