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 ...

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 ...

Researchers analyzing pulsar data have found tantalizing hints of ultra-slow gravitational waves. A team from Hirosaki University suggests these signals might carry “beats” — patterns formed by ...

Just a few weeks ago, we crossed the significant milestone of 6,000 known exoplanets. The counter keeps getting higher, and there are 8,000 more candidates waiting for confirmation. In the decades ...

The reason there are so many different types comes down to physics and timing. A star’s mass determines almost everything about its life: how bright it shines, what elements it produces, and even how ...

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

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

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Johns Hopkins researchers may have identified a compelling clue in the ongoing hunt to prove the existence of dark matter. A ...

In Sunday morning’s pre-dawn sky, you’ll see a very thin waning crescent moon right next to brilliant Venus. The moon will be ...

According to NOAA's Kp index forecast, geomagnetic storming is expected to peak between 5 p.m. and 11 p.m. EDT (2100 and 0300 ...