Proba-3 took an image of the Sun's inner corona every five minutes during an active period in September last year.

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

Earth’s atmosphere is slowly leaking into space, and new research shows some of it reaches the Moon, where it may be ...

The OSIRIS-REx spacecraft's name has been changed to OSIRIS-APEX for its new mission to asteroid Apophis. See its journey to ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

When does the next full moon rise? Find out exactly when to see the full moons of 2026, including the full "Snow Moon" in February. When you purchase through links on our site, we may earn an ...