Thomas Mulligan reports on promising evidence of an ocean beneath Saturn’s moon Mimas, hinting at extraterrestrial seas.

SpaceX sent more Starlink satellites in orbit early Wednesday. The Falcon 9 rocket launched from Cape Canaveral Space Force Station just before 2:30 a.m. It’s sending 27 Starlink satellites into ...

Up until now, satellites have not even been designed with refueling in mind, because, well, it wasn't possible. That will change if China can prove otherwise.

The Fram2 crew will be the first humans ever to orbit Earth’s polar regions from space.

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this week.

CALIFORNIA — The four-person civilian Fram2 mission returned home in a splash down off the coast of California on Friday after being the first humans to orbit Earth's polar regions. Riding in ...

Iowa native astronaut Peggy Whitson and her three-member crew are now halfway through their two-week research mission aboard the International Space Station. This is Whitson’s fifth visit to the ...

After successfully entering Earth’s atmosphere, a European spacecraft is lost "This partial success reflects both ambition and the inherent risks of innovation." ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a comet from another star system.

Third known interstellar object to pass through solar system, right next to Earth’s orbit ...