After this week's Amazon Big Spring Sale announcement, it's no surprise that Walmart is stepping up to the plate with its own impressive set of savings. Today, the retail giant announced its upcoming ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

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.

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

During its final hours on the lunar surface, the Blue Ghost spacecraft captured stunning photos of a lunar sunset.