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

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

Lunar Prospector launched on January 6, 1998, as the third mission within NASA’s Discovery Program, which emphasizes frequent ...

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 ...

After four centuries of advances, astronomers now capture the Sun’s swirling, dynamic features in stunning detail.

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.

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 ...

NASA for the first time has announced launch windows for the first crewed spaceflight beyond Earth orbit in more than half a century. The space agency on Friday said it is making final preparations ...

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 ...

At the 247th meeting of the American Astronomical Society, this one held in Phoenix on January 4-8, Andrea Dupree of the Center for Astrophysics|Harvard & Smithsonian presented a talk entitled, ...

Nearly all stars are found inside or around galaxies, but there are ways for stars to escape into intergalactic space.