Thứ Ba, 14 tháng 11, 2017

NPR News: On The Alien Question: Where Are They?

On The Alien Question: Where Are They?
The great physicist Enrico Fermi asked this question in the 1950s. There are more than 50 possible "solutions" to Fermi's Paradox: Here, astrophysicist Marcelo Gleiser explores a few.

Read more on NPR
Health & Science - November 14, 2017 at 11:25PM - On The Alien Question: Where Are They?

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