Physicists propose that high-energy photon jets from collapsing stars may be secret factories of heavy elements like plutonium, challenging traditional theories and possibly explaining strange cosmic ...

Using the James Webb Space Telescope, astronomers have peered into galaxies that existed at cosmic noon to hunt ravenously ...

Grunsfeld, a former NASA astronaut who has served as both the agency's chief scientist and science division leader, helped ...

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

Gamma-ray bursts (GRBs) are the most energetic events ever observed in the universe. These powerful outbursts can shine a quintillion (1018) times brighter than the sun. Since they were first ...

Core package to analyze gravitational-wave data, find signals, and study their parameters. This package was used in the first direct detection of gravitational waves (GW150914), and is used in the ...

Witness the cosmic spectacle of extreme energy meeting extreme gravity. Biden, breaking his silence, slams Trump on Social Security cuts 30 legendary movies that were banned ‘The Trump ...

They’re short-lived flaring events seen in X-ray light, and so far, they’ve only been spotted in a few black holes. What makes Ansky remarkable is that this is the first time such eruptions ...

One possible explanation is that the black hole is pulling in gas from its surroundings, not from a star. The X-ray flashes could be caused by a small object—like a planet or compact star ...

But since 2024, that black hole the astronomers nicknamed “Ansky” started producing X-ray bursts at regular intervals — almost as if Ansky was stretching, then going back to sleep for a bit, according ...

This offered a unique opportunity: It became possible to monitor a feasting and erupting supermassive black hole in real time. "The bursts of X-rays from Ansky are ten times longer and ten times ...