Ep. 26: The Largest Structures in the Universe

Astronomy Cast

Natural Sciences, Science, Astronomy

4.8 • 3.4K Ratings

🗓️ 11 February 2010

⏱️ 27 minutes

🔗️ Recording | iTunes | RSS

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Summary

This week we continue the story of galaxy formation, learning how groups of galaxies come together to form the biggest structures around – galaxy superclusters. And when you look at the Universe at this scale, environment is everything.

Transcript

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0:00.0	A Astronomycast episode 26 from Monday, March 5th, 2007, evolution of the biggest structures
0:11.6	in the universe.
0:12.6	Welcome to Astronomycast, our weekly facts-based journey through the cosmos, where we help
0:16.7	you understand not only what we know, but how we know what we know.
0:20.6	My name is Fraser Kane, I'm the publisher of Universe Today, and with me is Dr. Pamela
0:24.5	Gay, a professor at Southern Illinois University, Edwardsville.
0:27.8	Hey Pamela.
0:28.8	Hey Fraser, how's it going?
0:30.2	Good.
0:31.2	All right.
0:32.2	Another week more astronomy.
0:34.2	Exactly.
0:35.2	All right.
0:36.2	So last week, we covered our galaxy evolution show, talking about how galaxies start from
0:42.5	nothing and turn into something.
0:44.9	So this week, we're going to continue our journey and learn how these galaxies come
0:48.2	together to form some of the biggest structures of the universe.
0:51.4	So what do we give us?
0:52.4	Just a quick little recap.
0:53.4	Where were we last week?
0:54.6	We started off with how little things come together and gracefully form big, pretty things
0:59.8	like spiral galaxies.
	...

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