Our satellite skims past the bright red giant star Antares at the heart of Scorpius. Check them out in the south after sunset.

Uncover various deep-sky objects you can see this fall using a large telescope, including the Bubble Nebula (NGC 7635), the ...

Air Force Secretary Troy Meink's announcement is the first official U.S. acknowledgment of space-based weapons.

The Moon, Venus, Spica, and Mercury now all stand in a line tonight, but only if you’re quick — Mercury sets soon after the ...

Dione crosses Saturn’s north pole, projecting its shadow onto the cloud tops as Tethys disappears into the planet’s shadow.

Dark-sky sights take center stage as Saturn's moons dance and Venus mingles with the Moon in the sky this week.

Triangulum is a small but easy-to-spot constellation in the evening and morning sky, hosting one of the closest galaxies to our own.

Three celestial objects form a triangle in the evening twilight as Venus and the crescent Moon hang with Virgo’s brightest ...

The ethereal zodiacal light, also called the false dawn, shines before sunrise in the eastern sky this morning.

ESA's Samba and Tango closed out the 26-year Cluster mission with two targeted reentries a day apart, giving airborne ...

Bright evening star Venus now stands in line with Virgo’s alpha star, Spica, as the pair sets in the early-evening sky.

Europe's Vega C lifts a pair of Earth-observation satellites from French Guiana, China targets five launches, and Russia ...