Comet C/1999 S4 (LINEAR) was discovered by the LINEAR project in September 1999 and exhibited unusual behavior. Observations by the Hubble Space Telescope in July 2000 revealed a significant crustal ...

Pazmino’s Cluster, or Stock 23, is a small open cluster in Camelopardalis that shines as a hidden gem for binoculars and ...

TRACERS launch paves the way for NASA to study magnetic reconnection and how solar activity affects near-Earth space.

Born on July 25, 1920, Chushiro Hayashi graduated from the University of Tokyo with a degree in physics in 1942. After World ...

Pluto reaches opposition and the Moon waxes to First Quarter as shooting stars streak through the sky this week.

Pluto reaches opposition and is ready for those who want to chase it down. Use the biggest scope you've got, or take aim with ...

Perseus Moving Group, also known as the Alpha Persei Cluster, is a cluster of 500 stars, offering a glimpse of our Sun’s ...

Betelgeuse companion discovery with Gemini North resolves century-old mystery and opens new doors in red supergiant research ...

Astronomers have found 2023 KQ14, nicknamed Ammonite, a rare sednoid with a unique orbit that challenges the Planet Nine hypothesis.

Today in the history of astronomy, the first people to walk on the Moon splashdown back on Earth.

New Moon means dark skies — and your chance to try photographing interstellar interloper 3I/ATLAS moving against the ...

Maffei 1 and 2 are faint, dust-obscured galaxies near the Milky Way—discovered in 1967 and challenging targets for deep-sky ...