In May 2019, astronomers picked up something strange in the fabric of spacetime. The LIGO and Virgo detectors recorded a gravitational wave that lasted just one-tenth of a second. The signal, known as ...
In the blink of an eye after the Big Bang, the universe could have birthed strange new stars and black holes.
The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...