Brian Koberlein

Astrophysicist and Author

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Ancestral Masses
Black hole mergers may reveal the genealogy of black holes.
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Still Crazy After All These Years
Astronomers find a binary star near the black hole at the center of our galaxy.
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Staying On Track
Astronaut Don Pettit has taken astrophotography to a whole new level, with amazing results.
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Firefly Sparkle
Astronomers weigh a small galaxy from when the Universe was just 600 million years old.
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Hold It Together
The fastest spinning pulsars might only be possible if they contain quark matter.
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Gotta Lava It
Lava on young Earth drove the Moon farther away. Similar effects may occur on lava exoplanets.
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The Braiding Rivers
Tidal streams of interstellar objects could mean alien astroids visit our solar system in clusters.
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Mass With GASS
Astronomers calculate the mass of our galactic halo using high-velocity clouds.