#378 – Anna Frebel: Origin and Evolution of the Universe, Galaxies, and Stars

Lex Fridman Podcast

Lex Fridman

Philosophy, Society & Culture, Science, Technology

4.7 • 13K Ratings

🗓️ 18 May 2023

⏱️ 143 minutes

🔗️ Recording | iTunes | RSS

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Summary

Anna Frebel is an astronomer and astrophysicist at MIT. Please support this podcast by checking out our sponsors:
- Hexclad Cookware: https://hexclad.com/lex and use code LEX to get 10% off
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EPISODE LINKS:
Anna's Twitter: https://twitter.com/annafrebel
Anna's Instagram: https://instagram.com/annafrebel
Anna's Book - Searching for the Oldest Stars: https://amzn.to/3pi2Ci6

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OUTLINE:
Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) - Introduction
(05:26) - First elements
(12:35) - Milky Way
(16:11) - Alien worlds
(19:16) - Protogalaxies
(24:29) - Black holes
(29:27) - Stellar archeology
(38:42) - Oldest stars
(46:32) - Metal-poor stars
(1:02:05) - Neutron capture
(1:07:01) - Neutron stars
(1:12:30) - Dwarf galaxies
(1:17:10) - Star observation
(1:45:27) - James Webb Space Telescope
(1:51:17) - Future of space observation
(1:54:26) - Age of the universe
(2:07:34) - Most beautiful idea in astronomy
(2:11:23) - Advice for young people
(2:20:17) - Meaning of life

Transcript

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0:00.0	The following is a conversation with Anna Frabel, an astrophysicist at MIT studying the oldest
0:06.4	stars in the Milky Way galaxy in order to understand the chemical and physical conditions of the
0:11.5	early universe. And how from that, our galaxy formed and evolved to what it is today, the place we
0:20.0	humans call home. And now a quick few second mention of each sponsor. Check them out in the
0:25.6	description is the best way to support this podcast. We got Hexclad for well-designed and well-engineered
0:32.4	cookware, Numerai for the world's hardest data science tournament and house of McAdamias for delicious
0:40.4	snacks, choose wisely my friends. Also, if you want to work with our team, where I was hiring,
0:45.6	go to lexfreement.com slash hiring. And now onto the full ad reads, never any ads in the middle.
0:51.7	I tried to make this interesting, but if you skip them, please still check out the sponsors. I
0:55.7	enjoy their stuff. Maybe you will too. This episode is brought to you by a new sponsor Hexclad,
1:02.6	the maker of well-engineered and patented, and quotes hybrid cookware. I don't know what that
1:11.2	means. All I know it looks badass. I got it a couple of weeks ago. I already cooked a couple of
1:16.6	steaks on it. It's just perfect. My goal for this weekend actually is to cook an omelet on it,
1:24.6	but it works perfect for steak, non-stick. I don't know how they do it, but as they say, it has the
1:31.7	performance of stainless steel, the durability of cast iron, and it has non-toxic and non-stick
1:38.2	coating. The steaks in case you're wondering were delicious. I like it about medium rare,
1:45.6	and there's probably a lot more to be said about how I like to cook steak in different conditions.
1:50.8	When I'm traveling, when I'm at home, all that kind of stuff, but steak is the simple meal I return
1:56.8	to time and time again for a source of simple happiness and fulfillment. Almost exclusively,
2:03.6	I've been eating one time a day. So it's steak, big steak, with a bunch of veggies on the side,
2:10.3	if I'm going keto and just steak, if I'm going carnivore. Anyway, go to hexclad.com and use code
2:16.8	Lex to get 10% off your entire order. That's hexclad.com and use code Lex for 10% off your entire order.
	...

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