NASA plans to prioritize the fission reactor as power necessary to extract and refine lunar resources.

Look above the eastern horizon in the hours preceding dawn on Sept. 1 to find Venus shining among the stars of the ...

The Aurigid meteor shower hails from debris of the comet C/1911 N1 Kiess, which last visited the inner solar system 2,000 years ago.

With that statement, posted to social media, SpaceX wrapped another launch in support of its broadband internet satellite megaconstellation on Sunday (Aug. 31). The 28 Starlink satellites ( Group ...

The total lunar eclipse will begin globally at 11:28 a.m. (1528 GMT) on Sept. 7, with totality occurring at 1:30 p.m. ET (1730 GMT) and stretching on for a staggering 82 minutes before the deepest ...

Think you know Pluto? From icy plains to planetary debates, this quiz dives deep into the mysteries of our solar system’s most controversial—and captivating—dwarf planet.

"JUICE will use the gravity of Venus this week to bend its orbit around the sun and gain speed relative to Earth without using fuel," ESA wrote in the Aug. 25 statement. "JUICE will use the Earth ...

New videos give us multiple angles of Ship's Flight 10 splashdown, and they show us the toll that reentry took on the vehicle ...

An executive order (EO) signed by President Trump on Thursday (Aug. 28) — just before millions of Americans began their Labor ...

Auroras may be visible from Alaska to Illinois as an incoming solar storm could spark geomagnetic storm conditions this Labor Day.

To study the sun, scientists use a specialized telescope called a coronagraph. This instrument mimics a solar eclipse by ...

Stargazers will need a clear view of the western horizon to spot the moon near Spica as the sun sets on Aug. 27.