Regular stars collapse and die once they run out of fuel for their nuclear reactions, but the white dwarfs just sit there, hanging out, for eternity.

"The key result is that while many alternatives look very similar to the 'standard' black hole at today's image quality, the ...

Object permanence" is a concept grasped by babies, eventually. Why does Donald Trump's White House have such a hard time with ...

Everyone knows the best breakfasts come from unassuming hole-in-the-wall restaurants. Here's our list of choice breakfast ...

In a paper published in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA Collaboration reports on the detection of two gravitational wave events in October and November of 2024 ...

A radio image of two black holes orbiting each other in Quasar OJ287. The light comes from the glowing gas surrounding the black holes and the particle jets being emitted. Valtonen, Mauri et al., The ...

A black hole that was eaten by a star seems to have gotten revenge by consuming the star from the inside, producing a gamma-ray burst spotted about 9 billion light-years from Earth. The burst, called ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

Could white holes exist? As the reverse of black holes, these theoretical wonders challenge our understanding of space and time. Join us as we uncover what white holes are and what they could mean for ...

Astronomers say they've discovered a new record holder for the most massive black hole merger to date. The merger is so big — roughly 255 solar masses — that it shouldn't technically be possible ...

Astronomers spotted the ultramassive black hole inside the Cosmic Horseshoe, an equally gargantuan galaxy so powerful that it bends light from distant galaxies. Reading time 3 minutes The largest ...

Bill Smith receives funding from an NSF Research Trainee Grant called EMIT. Karan Jani is a member of the LIGO Scientific Collaboration. Krystal Ruiz-Rocha receives funding from an NSF research grant ...