Visit to watch more groundbreaking talks from the TED Fellows.
Astrophysicist and TED Fellow Sarah Rugheimer searches for aliens — but not the cartoony green kind. She's looking for extraterrestrial microbes by studying how these single-celled organisms emit gases, which could reveal evidence of them throughout the cosmos. Wondering if we're really alone in the universe, Rugheimer identifies two big hurdles to confirming life on another world and offers insight into what finding it might mean for us.
The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You're welcome to link to or embed these videos, forward them to others and share these ideas with people you know.
Become a TED Member:
Follow TED on Twitter:
Like TED on Facebook:
Subscribe to our channel:
TED's videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy ( ). For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at
Xem đầu
❤️
We’re the seeds of life… Let’s reach for the stars
yes
We came from the stars… Full circles
Last time I was this early, we were microscopic ourselves
I like the editing style! Fun visual/sound effects without being too intrusive. Ted is such a cool guy
This is a good subject I always assumed that we should have found some form of microscopic bacteria on other planets. I wrote this before I even watched the video so I hope this is what she’s talking about lol
Yes, Ma’am. That’s what makes us human.❤
1:46 I really liked that explanation
Great video ! Also I was wondering (maybe this is stupid) do lifeforms emit (sound)waves in particular ? And if so could it be possible to search for life with sounds rather than images ?
But that requires molecules which is pretty non existent above the upper atmosphere
Sound doesn’t travel in vacuun
@Cas aaah right thx
did anyone else click on this thinking it was going to be an expose on Scientology
It would be interesting to find not only the known biological life, but also other complex structures and their appearance of emergence. But it is a start.
TED needs a Dark theme for intro and outro! Because when i saw this at night my gawd, my eyes xD
It was interesting. But, the video was so short! Thanks !