"Light pollution from projects like INNA doesn't just hinder research, it steals our shared view of the universe." ...

As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

As Firefly Aerospace prepared to close out a two-week mission on the moon, its lander had one final gift to beam home: the first high-definition images of a lunar sunset.

Up for a challenge? If skies are clear, you may be able to complete a rare feat of visual athletics this coming weekend, and ...

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