O'Grady and her colleagues found no sign of X-rays in the Chandra data. Even assuming that the wind gusting out of Betelgeuse ...

New X-ray observations reveal Betelgeuse’s mysterious companion is not a collapsed stellar remnant but a young, Sun-like ...

This quiz will take you on a journey through the life cycle of stars, their classification, and the incredible processes that ...

Researchers analyzing pulsar data have found tantalizing hints of ultra-slow gravitational waves. A team from Hirosaki ...

A new paper presents a method for distinguishing between different sources of nanohertz gravitational waves. Pulsars may be revealing faint ripples in the fabric of the universe, ultra–low-frequency ...

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect starlight, and nobody does it better than LTT9779b. This world reflects 80 ...

If you want to build a little rocket to get off a little planet, [Rocket Lab is] probably a good place to start,' ...

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer ...

The most energetic events in the universe are gamma ray bursts, beams of radiation so intense they could wipe out all life on ...

Space News on Major Missions and Probes. This past year has been anything but quiet for major space missions. New technology, ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the ...

Astronomers have detected the first “heartbeat” of a newborn star within a cosmic explosion, revealing a rapidly spinning ...