A recent study published in The Astrophysical Journal Letters has provided the most precise distance to the Coma Cluster of galaxies yet — and also has deepened a crisis in cosmology. The problem is ...

The object that would become known as both the Great January Comet of 1910 and the Daylight Comet was first seen Jan. 12 in the Southern Hemisphere. It’s unclear who precisely discovered it, but some ...

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.

East of Gemini, where the bright planet Jupiter has been demanding attention, is the constellation Cancer. Closer to the horizon and to the lower left of the Twins early in the evening as the ...

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 ...

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

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 ...

This famous asterism at the heart of the Strongman is visible in the early-morning sky this month before sunrise.

It shows how the first supermassive black holes may have formed, and goes a long way in helping scientists understand the early universe. As the universe expands, wavelengths of light from distant ...

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, ...