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.

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.

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 ...

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

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

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.

Proximate to the Moon, Regulus (Alpha Leonis), exhibiting an apparent magnitude of 1.3, will be visible. The angular separation between the Moon and Regulus is expected to change on an hourly basis.

On December 28, 2025, the open cluster M41 in Canis Major, located 4° south of Sirius and shining at magnitude 4.5, is best observed around local midnight when it is 30° above the southern horizon, ...