One Universe at a Time

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The Puzzle Of Fluffy Galaxies

In Galaxies by Brian Koberlein3 September 20170 Comments

How can some galaxies survive with so few stars? The answer could be dark matter.

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Live Fast, Die Young

In Galaxies by Brian Koberlein8 April 20171 Comment

Some galaxies have a period of extremely rapid star formation, and this leads to their early demise.

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How To Get Rid Of A Black Hole

In Black Holes by Brian Koberlein5 April 20177 Comments

How does a galaxy get rid of a supermassive black hole?

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Supermassive Black Holes Can Trigger Star Formation

In Galaxies by Brian Koberlein3 April 20177 Comments

Supermassive black holes lurk in the hearts of galaxies, and they can trigger the formation of new stars.

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ALMA Sees Hydrogen Super-Halos Around Young Spiral Galaxies

In Galaxies by Brian Koberlein29 March 20173 Comments

New observations from ALMA show that early galaxies were surrounded by large halos of hydrogen gas.

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Deep Field Black Holes

In Black Holes by Brian Koberlein7 January 20175 Comments

A new x-ray deep field image supports the idea that supermassive black holes formed before galaxies did.

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The Stars Uncounted

In Cosmology by Brian Koberlein28 November 20162 Comments

The relativistic effect of gravitational lensing allows astronomers to see the faintest galaxies.

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Order Of Magnitude

In Galaxies by Brian Koberlein31 October 20169 Comments

If everyone gave names to 200 galaxies, there would still be billions of nameless galaxies in the cosmos.

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ALMA Deep Field

In Galaxies by Brian Koberlein6 October 20161 Comment

ALMA has seen clues of star formation in some of the most distant galaxies.

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About The Author

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