The moon and Pleiades will glow together on Feb. 23 in a striking skywatching display. Look high above the southwestern ...

Read a sci-fi short story every month and join a virtual community of fellow science fiction fans! A minor geomagnetic storm painted the night skies over Iceland and eastern Canada with glowing ...

NASA on Sunday (Sept. 22) announced that the space agency will roll its massive Artemis 2 moon rocket, the second-ever Space ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

The dark skies during a new moon provide ideal conditions for spotting skywatching targets that would otherwise be outshone by moonlight.

A total lunar eclipse occurs when Earth passes between the moon and the sun during a full moon phase, plunging the moon into Earth's shadow. The next such event will take place on ...

NASA has given its Perseverance Mars rover a powerful new ability to determine its exact location on the Red Planet without ...

Why do some places wait 1,000 years to see a total solar eclipse while others get two in a decade? The surprising orbital ...

The Lunar Gateway is planned space station that will orbit the moon. It is part of the NASA‑led Artemis program. Artemis aims ...

Scientists suspect that a rapidly spinning, highly magnetic neutron star, or "pulsar," dwells at the heart of the Milky Way.

Will this finally be the time we learn what alien skeletons are in the U.S. government's closet? Don't count on it.

Scientists think it's possible for a spacecraft to gain enough velocity to catch up with iconic interstellar comet 3I/ATLAS, which is currently speeding away from us, by firing its booster rockets ...