New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

Scientists have confirmed that colossal collisions between galaxies trigger titanic eruptions in the centers of those ...

The Hubble Space Telescope has captured imagery of the R Aquarii binary star system from 2014-2023. The images have been time ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

An international team of astronomers, led by SRON, discovered a rapid explosion of matter around the supermassive black hole ...

Low Earth orbit is filling up with industrial-scale fleets of satellites, and the collateral damage is becoming impossible to ...

Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...