Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

The microwave laser, or maser, is produced by colliding galaxies and is so powerful it may warrant an exotic classification: ...

Liquid mercury contamination has permanently shut down the Dunn Solar Telescope as NSF moves ahead with demolition in ...

The newly discovered object dubbed the Great Comet of 2026 may become visible to the naked eye during its close solar pass in April.

Metre Sky Survey (LoTSS-DR3) mapped 13.7 million radio sources, providing detailed data on supermassive black holes and rare cosmic phenomena.

SEOUL, Feb. 28 (Yonhap) -- North Korea on Saturday released a rare solo photo of leader Kim Jong-un's daughter Ju-ae taking ...

On Monday, March 2, the observatory at Sugarloaf Ridge State Park in Kenwood will host a “Lunar Eclipse Focus Night” to prepare attendees for a rare ‘Blood Moon’ visible ...

Deep inside a dust-choked galaxy, astronomers have uncovered a chemical environment far more complex than expected.

The Atacama Cosmology Telescope’s final data release confirms a major cosmic discrepancy and rules out many attempted solutions.

Webb captured the object in infrared — light wavelengths that are invisible to human eyes but can pierce through thick dust.

A 'prelude to a supernova' is how NASA describes this stunning new James Webb Space Telescope image of Wolf-Rayet Star WR 124 ...

The new facility will play a pivotal role in the high-volume manufacturing of components for Rocket Lab’s spacecraft customers, support the continued acceleration of Electron rocket production rate, ...