The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

A new map of cosmic expansion suggests that dark energy evolves over time, hinting that the universe doesn’t work the way we ...

A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.

As Venus approaches its inferior conjunction, astrophotographers have snapped some striking shots of the crescent planet ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies and their shared cosmic glow since the beginning ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

LOS ANGELES -- The 2025 Oscars kicked off Sunday evening with gravity-defying musical performances from two popular stars ... with a rendition of "Over the Rainbow" from 1939's "The Wizard ...