One Universe at a Time

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The Black Hole At The Edge Of The Universe

In Black Holes by Brian Koberlein12 December 20172 Comments

The most distant quasar ever observed challenges our understanding of how black holes formed.

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A Universe Of Antimatter

In Cosmology by Brian Koberlein24 November 20175 Comments

If our universe were made of antimatter, what would it look like?

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Measuring The Universe With Gravitational Waves

In Gravity by Brian Koberlein22 November 20173 Comments

The recent merger of two neutron stars produced both visible light and gravitational waves, and that lets us determine just how fast the universe is expanding.

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Dark Matter Isn’t Warm And Fuzzy

In Cosmology by Brian Koberlein3 August 20175 Comments

A new survey of distant quasars shows that dark matter isn’t warm and fuzzy.

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How To Define Distance In An Expanding Universe

In Cosmology by Brian Koberlein28 May 20176 Comments

On a cosmic scale the notion of distance is more subtle than you might think.

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The Dark Web

In Dark Matter by Brian Koberlein23 April 20170 Comments

A study of thousands of galaxy pairs shows dark matter filaments exist between galaxies.

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Who Needs Dark Energy?

In Dark Energy by Brian Koberlein11 April 20176 Comments

Do we really need dark energy to explain cosmic expansion?

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Doomsday Scenario

In Quantum Mechanics by Brian Koberlein14 March 20178 Comments

Could the Universe collapse and destroy everything? Probably not.

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Bigger, Stronger, Faster

In Cosmology by Brian Koberlein1 February 20178 Comments

New observations of lensed quasars show the Universe is expanding faster than expected. But these results raise questions about the assumptions of our cosmological models.

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About The Author

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