Are we alone? Probably not, out of modesty – keeping in mind that about a quarter of all stars host a habitable Earth-size planet. Last year, the first interstellar …
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Avi Loeb: Extraterrestrial Life – From Bio-Signatures to Techno-Signatures – Rosseland lecture 2019
![Something Big Happened! [CONFIRMED] This Will Amaze You! 2017-2018](https://img.youtube.com/vi/eMmfhmZ5684/maxresdefault.jpg?cc_load_policy=1 "Something Big Happened! [CONFIRMED] This Will Amaze You! 2017-2018")
