On Jan. 4, Saturn briefly hid behind the crescent moon, escaping the view of skywatchers in Europe, Africa, western Russia ...

From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

In its final episode, Skeleton Crew sticks the landing with lots of action and some genuinely tense moments, but its answers ...

"We have by and large been ignoring triples in models and simulations — we're just starting to understand how these types of ...

"There are still many things related to planetary formation and the early evolution of young planetary systems that we don't ...

As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while ...

Early on Tuesday morning (Jan. 15), a SpaceX Falcon 9 rocket sent Blue Ghost and Resilience — lunar landers built by Firefly ...

Firefly Aerospace's first mission to the moon is poised to launch in the early morning hours on Jan. 15. The company's Blue ...

The two lunar landers — Firefly Aerospace's Blue Ghost and Resilience, built by the Japanese company ispace — lifted off ...

The moon performed a cosmic ballet with Mars this week.

That camera, called LSSTCam (the telescope was originally called the Large Scale Synoptic Telescope), has 21 times the field ...

SpaceX plans to launch two private moon landers early Wednesday morning (Jan. 15), and you can watch the action live.