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Exoplanets and the Search for Habitable Worlds 

Linda Hall Library
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May 5, 2010, at the Linda Hall Library
For thousands of years people have wondered, "Are we alone?" With over 400 planets discovered to orbit nearby stars, the existence of "exoplanets" is firmly established. Professor Sara Seager from MIT presents highlights of exoplanet discoveries and discuss when we might find another Earth and what kinds of signs of life we are looking for.

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28 сен 2024

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Комментарии : 49   
@pablobest4239
@pablobest4239 Год назад
With the lecture being 10 years old, I look forward to revisiting these questions as new answers (or questions) come from the JWST today.
@srmeister1
@srmeister1 Год назад
13 years old
@DavidRayBurroughs
@DavidRayBurroughs Год назад
13 years and 1 week...
@whirledpeas3477
@whirledpeas3477 Год назад
13 years 3 months 2 weeks 😊
@MartinSage
@MartinSage 5 месяцев назад
I love science fiction. My favorite is an old 1950's radio show called X-Minus One. One of the stories is called "Universe" which tells the story of a huge craft holding an entire civilization. They have been traveling in space for decades upon decades with no end in view😢
@TubeAddict999
@TubeAddict999 3 месяца назад
This was amazing! Had she done another one recently? I.e. 2024?
@LindaHallLibrary
@LindaHallLibrary 3 месяца назад
Glad you enjoyed the lecture! Check out Jessi Christiansen's recent talk on exoplanets: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0JbrLnzwDD0.html
@TubeAddict999
@TubeAddict999 3 месяца назад
@@LindaHallLibrary thanks so much! Will do 😁
@PEHook
@PEHook Год назад
What was known over 13 years ago ...
@ricksanchez6538
@ricksanchez6538 3 дня назад
Look at the Sagittarius Arm of the galaxy mainly cat tail. Your welcome.
@syntaxed2
@syntaxed2 Год назад
Whats the point when we dont even have a propulsion system that could reach that world in under 20.000 years?
@ethorii
@ethorii Год назад
Inspiration for future generations to overcome current limits?
@laxmisarathy2519
@laxmisarathy2519 Год назад
Iiio
@NondescriptMammal
@NondescriptMammal Год назад
I agree, the nearest star is 25 trillion miles away, and humans have never been further from the earth than the moon... and we are searching for habitable planets? The point is probably that it's a sales pitch to keep the gullible public gung-ho about spending billions on the next bigger telescope. The strangest part is, even with our advances in technology, and ever improved space telescopes... even the JWST cannot determine whether any exoplanet is actually habitable. Period. It's not even close to having that capability.
@TubeAddict999
@TubeAddict999 3 месяца назад
It's a step closer.
@teddroessler8566
@teddroessler8566 Год назад
There is absolutely no proof of a god out there. Zero.
@unifive10
@unifive10 11 месяцев назад
All of this is proof
@MartinSage
@MartinSage 5 месяцев назад
Fact: millions of years ago Mars had an atmosphere like earth and oceans like earth. Fact: Samples from Mars shows proof that huge atomic activities occurred that resulted in the destruction of the atmosphere and oceans causing what we see today. Question: Could it be that survivors of Mar's atomic war colonized Earth?-
@davidorth4906
@davidorth4906 Год назад
Exo-planets are sexy.
@django-unchained
@django-unchained 7 месяцев назад
Lots of assumptions here "life cannot live here", where it should be "no known life could live here" etc. Expected much higher level of lecture. The weakest so far I seen from Linda Hall Library.
@bobmorr2892
@bobmorr2892 Год назад
Boring video of incredibly exciting subject.
@oqsy
@oqsy Год назад
There is absolutely no proof of a habitable planet beyond Earth’s atmosphere. Zero.
@esnevip
@esnevip Год назад
Depends, habitable for whom?
@oqsy
@oqsy Год назад
@@esnevip also a fair point
@kordelas2514
@kordelas2514 Год назад
There is no proof that Earth is a globe, a planet and that it is suspended in outer space. Zero.
@esnevip
@esnevip Год назад
@@kordelas2514 please be satire..
@kordelas2514
@kordelas2514 Год назад
@@esnevip It is not. I just shared the truth.
@robertallencad1
@robertallencad1 Год назад
This is wonderful
@Paultricounty
@Paultricounty 23 дня назад
MilkyWay has only 100:billion stars, the universe has only a 100:billion galaxies? I thought that estimate had been changed a while ago.
@SueFerreira75
@SueFerreira75 Год назад
Great lecturer
@captiveexile2670
@captiveexile2670 Год назад
Look in the "red dot" region far away from "Sa amrng A* (center of Milky Way) as we are on another arm of the Milky Way. (Makes sense, for arm full of stars progably has an earth-like planet also rotating in a "Golidlocks Zone".
@adamwiseman5831
@adamwiseman5831 Год назад
Let's start with an ego blinded point of view that aliens could only have technology like ours. We're number 1 were number 1. 😂😅 0
@oqsy
@oqsy Год назад
32:30 Completely ignores the increase flare activity of smaller stars and why that means they are NOT better than our sun. I gotta go watch fart videos.
@echo1257
@echo1257 Год назад
😅
@kordelas2514
@kordelas2514 Год назад
We do not know what local visual effects in the sky known as stars and the sun really are and how they occur.
@gaugengotm2307
@gaugengotm2307 Год назад
Who pays the bills for all these types of zero sum endeavors? "100's" of years ahead of reality.
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