One Universe at a Time

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When You See The Flash

In Stars by Brian Koberlein19 August 20160 Comments

Astronomers have observed a star before it became a nova.

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Fading Star

In Stars by Brian Koberlein27 July 20160 Comments

Epsilon Aurigae dims every 27 years. It’s still a bit of a mystery why.

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From Many, One

In Stars by Brian Koberlein27 June 20164 Comments

By studying millions of stars we can learn the story of our own Sun.

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Big Planet Discovered Around A Very Young Star

In Stars by Brian Koberlein1 June 20161 Comment

A planet larger than Jupiter has been detected around an extremely young star.

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The Gilded Age

In Chemistry by Brian Koberlein24 May 20162 Comments

The collision of neutron stars causes a galaxy to enter a gilded age.

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Mystery Of The Largest Stars

In Stars by Brian Koberlein20 March 20161 Comment

The most popular view has been that such supermassive stars form when two large stars collide, but new observations cast doubt on that model.

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Young Star, Young Planet

In Stars by Brian Koberlein19 March 20162 Comments

HL Tau is a young star, only about a million years old. Despite its young age, the star is already busy at making a family.

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How Large Can A Solar System Be?

In Stars by Brian Koberlein27 January 20163 Comments

A new discovery raises an interesting question about just how large a planetary system could be.

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Could You Build A Helium Star?

In Physics by Brian Koberlein9 January 20163 Comments

Building a star isn’t simply a matter of gathering enough mass. The type of matter you use greatly affects the behavior of your star.

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About The Author

Brian Koberlein is an astrophysics professor who can't stop rambling about how awesome the Universe is.