(via Sabine Hossenfelder) The Fermi Paradox is an estimate that says: Given all we currently know about the universe, we should have found extraterrestrial life already. So why haven’t we? In a paper ...
The Fermi paradox asks a simple question with no easy answer: if the galaxy contains hundreds of billions of stars, many with planets, why has no other civilization made contact? One line of research ...
(via Steve Mould) Sometimes a golf ball with pop back out of the hole. The physics behind it is quite surprising. Watch it happening in slow motion.
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