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astronomy

Latest Articles

Abstractions blog

LIGO Reports Second Black-Hole Merger

By Natalie Wolchover
June 15, 2016
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The spokesperson for the Laser Interferometer Gravitational-Wave Observatory called it “a promising start to mapping the populations of black holes in our universe.”

Abstractions blog

A Glimpse Through a Cosmic Keyhole

By Natalie Wolchover
June 14, 2016
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What could cause galaxies millions of light years apart to all spew material in the same direction?

astrophysics

After Black Holes Collide, a Puzzling Flash

By Kevin Hartnett
March 2, 2016
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A satellite spotted a burst of light just as gravitational waves rolled in from the collision of two black holes. Was the flash a cosmic coincidence, or do astrophysicists need to rethink what black holes can do?

Q&A

From Einstein’s Theory to Gravity’s Chirp

By Natalie Wolchover
February 18, 2016
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The path from a revolutionary set of equations to the detection of gravitational waves was strewn with obstacles and controversy, explains the physicist Daniel Kennefick — and the struggle continues.

astrophysics

Gravitational Waves Discovered at Long Last

By Natalie Wolchover
February 11, 2016
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Ripples in space-time have been detected a century after Einstein predicted them, launching a new era in astronomy.

astrobiology

Scientists Debate Signatures of Alien Life

By Natalie Wolchover
February 2, 2016
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Searching for signs of life on faraway planets, astrobiologists must decide which telltale biosignature gases to target.

Q&A

Searching the Sky for the Wobbles of Gravity

By Liz Kruesi
October 22, 2015
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The physicist Gabriela González is on the cusp of finding the first direct evidence of gravitational waves — soundlike wobbles in space-time produced by black holes and their kin.

astrophysics

The Particle That Broke a Cosmic Speed Limit

By Natalie Wolchover
May 14, 2015
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Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the universe.

astrophysics

Strange Stars Pulse to the Golden Mean

By Natalie Wolchover
March 10, 2015
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Nature has revealed peculiar mathematical objects that connect order and chaos.


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