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 ...

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

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, ...

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.

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

Because rogue planets don’t orbit a host star, they can’t be found using astronomers’ typical go-to methods: radial velocity or transits. (Radial velocity measures the way a star wobbles as an unseen ...

The observation period features lunar appulses with Saturn, Neptune, and Uranus, complemented by transits of Jupiter's Galilean moons (Io and Europa) and their shadows across the gas giant's disk.

Robert Aitken, born in 1864, overcame childhood health challenges, including progressive deafness, to earn a B.A. in mathematics in 1887 and subsequently teach mathematics and astronomy. He embarked ...

NGC 7662, a planetary nebula colloquially known as the Blue Snowball, is located within the northern region of the constellation Andromeda, approximately 4.5° east of the star Omicron Andromedae.

January presents optimal viewing conditions for Jupiter, which reaches opposition on the 10th in Gemini at magnitude -2.7, offering its largest apparent diameter (47") and opportunities to observe ...

During a total lunar eclipse, the Moon remains faintly visible due to the refraction and scattering of sunlight by Earth's atmosphere. The color observed during totality (ranging from red to brown) is ...

The article details a significant astronomical event: the transit of Jupiter's moon Io and its shadow across the gas giant's disk, observed overnight from December 27th into December 28th. The ingress ...