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By Paul M. Sutter on May 30, 2019 in
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What came before the big bang? How do we know the shape of the universe? We’re gonna need a bigger telescope!

By Paul M. Sutter on May 2, 2019 in
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How is Mars getting all its methane?
Why are there no green stars? How do we know what the big bang made?

By Fraser Cain on April 30, 2019 in
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Podcaster: Fraser Cain 

By Paul M. Sutter on July 12, 2018 in
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Where’s the best place to live on Mercury? Where did the Big Bang start? lets find out the answer here at #365DaysOfAstro

By Paul M. Sutter on May 17, 2018 in
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Why the universe expands? How can black holes form in the big bang? more with @PaulMattSutter at #365DaysOfAstro

By Paul M. Sutter on February 6, 2018 in
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What did Hubble really discover? Why does redshift imply an expanding universe? Why is the night sky dark? Why is there so much hydrogen, and how is that connected to the Big Bang?

By Astronomy Cast on February 13, 2017 in
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We get questions every week about string theory and topics popularized by science fiction. Here’s the problem. There’s just no evidence.

By Duane Lee on September 28, 2009 in

Date: September 28, 2009 Title: The Connection Between Metal Abundances and the Evolution of Galaxies Podcaster: Duane Lee from Columbia Astronomy Organization: Columbia University Astronomy http://outreach.astro.columbia.edu Description: Metals in astronomy refer to any element heavier than Helium on the periodic table. The abundance of metals, with the exception of a few, tells us the processing […]