Are aliens already watching us? | BBC Ideas
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We've been sending signals into the universe for decades. Should we stop advertising ourselves? And if we stopped, could aliens still find us? MIT quantum astrochemist Clara Sousa-Silva explains.
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Subscribe to BBC Ideas https://bbc.in/2F6ipav
------------------
Do you have a curious mind? You’re in the right place.
Our aim on BBC Ideas is to feed your curiosity, to open your mind to new perspectives, and to leave you that little bit smarter.
So dive in. Let us know what you think. And make sure to subscribe! https://bbc.in/2F6ipav
Visit our website to see all of our videos: https://www.bbc.com/ideas
And follow BBC Ideas on Twitter: https://twitter.com/bbcideas
#aliens #science #astrochemistry
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