Deep-sky objects shine and the giant planets show off their satellites as the bright light from the Moon disappears from our ...

The Fighting Dragons of Ara, also called the Rim Nebula and cataloged as NGC 6188, comprises dark, star-forming clouds and bright young suns.

First-magnitude Saturn crosses into Pisces today, readily visible to the naked eye as the brightest light in the southwestern sky as it sinks slowly toward the horizon a few hours after sunset. You’ll ...

While late M-stars are the easiest places to find Earth-sized planets, a new study suggests they are biological dead ends where animal life may never find enough fuel to evolve.

Today in the history of astronomy, one of the brightest and most famous scientific minds of the modern era is born.

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

The Schmidts' philanthropic research organization will build a 3-meter space telescope and fund three ground-based facilities.

The celestial object described is an open cluster, NGC 7789, possessing an apparent magnitude of 6.7 and located between 5th-magnitude Sigma Cassiopeiae and 6th-magnitude Rho Cas, known by several ...

If you’re up early today, try finding the famous Keystone of Hercules in the eastern sky, about 40° high two hours before sunrise. Looking east, you’ll see a bright star (magnitude 0.0) some 20° high ...

Astronomers have discovered a rare starless galaxy-like cloud known as a RELHIC, providing the strongest evidence yet for a cornerstone prediction of the Lambda CDM model: that many small dark matter ...