Record-breaking gravitational wave puts Einstein’s relativity to its toughest test yet — and proves him right again
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Double Cosmic Explosion Gives Birth to Unprecedented ‘Superkilonova’
When massive stars die, they go out in fiery explosions called supernovas. On rarer occasions, two nearly dead…
That Black Hole Merger That ‘Shouldn’t’ Exist’? Scientists Propose a Wild Explanation
When LIGO broke news of an unintelligibly large black hole merger earlier this year, physicists were stunned but…
A wormhole from another universe? Scientists revisit the puzzling black hole GW190521
In May 2019, astronomers picked up something strange in the fabric of spacetime. The LIGO and Virgo detectors…
Daylight Savings Time Is So Bad, It’s Messing With Our View of the Cosmos
Tracking gravitational waves—invisible ripples in space-time from intense astronomical events—pushes the limits of what astronomers must do to…
LIGO’s Sharpest Detection Yet Confirms Famous Stephen Hawking Theory
LIGO’s discovery of gravitational waves—ripples in space-time from powerful cosmic events—hit astrophysics more like a tidal wave than…