Exoplanets and the Search for Habitable Worlds
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- Опубліковано 21 вер 2024
- 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.
With the lecture being 10 years old, I look forward to revisiting these questions as new answers (or questions) come from the JWST today.
13 years old
13 years and 1 week...
13 years 3 months 2 weeks 😊
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😢
This is wonderful
Great lecturer
MilkyWay has only 100:billion stars, the universe has only a 100:billion galaxies? I thought that estimate had been changed a while ago.
This was amazing! Had she done another one recently? I.e. 2024?
Glad you enjoyed the lecture! Check out Jessi Christiansen's recent talk on exoplanets: ua-cam.com/video/0JbrLnzwDD0/v-deo.html
@@LindaHallLibrary thanks so much! Will do 😁
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".
What was known over 13 years ago ...
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?-
Whats the point when we dont even have a propulsion system that could reach that world in under 20.000 years?
Inspiration for future generations to overcome current limits?
Iiio
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.
It's a step closer.
There is absolutely no proof of a god out there. Zero.
All of this is proof
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.
Exo-planets are sexy.
Boring video of incredibly exciting subject.
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
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.
😅
We do not know what local visual effects in the sky known as stars and the sun really are and how they occur.
Who pays the bills for all these types of zero sum endeavors? "100's" of years ahead of reality.
There is absolutely no proof of a habitable planet beyond Earth’s atmosphere. Zero.
Depends, habitable for whom?
@@esnevip also a fair point
There is no proof that Earth is a globe, a planet and that it is suspended in outer space. Zero.
@@kordelas2514 please be satire..
@@esnevip It is not. I just shared the truth.