Rising around 7:30 P.M. local daylight time, Saturn reaches an altitude above 40° in the southeast by local midnight. Visible ...

Here's what's launching Sept. 21–27: two Chinese rockets go up, Rocket Lab delivers an Earth-observation satellite, and ...

Our current planet-hunting techniques are unable to detect an Earth-like planet in an Earth-like orbit around a Sun-like star.

Now is the best time to catch 145-mile-wide 3 Juno as it passes through a random collection of 9th- and 10th-magnitude stars.

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

High in the eastern sky this evening you’ll find the zig-zagging constellation Lacerta, home to several lovely and relatively bright open star clusters. Tonight, let’s check out the brightest of those ...

Mars passed 6° due south of Pollux in Gemini at midnight on the 18th, and they now rise together in the early-morning sky. An hour before sunrise, the heads of Gemini have reached an altitude of ...

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

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

HST celebrated its 36th birthday in space with a detailed look at the famous Trifid Nebula (M20), a dusty stellar nursery.