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 ...

Black holes, with their cosmic vacuum cleaner meme in hand, have captured the imagination of scientists and the general public in approximately equal numbers for centuries. But imagine those dark ...

On November 12, 2025, three gravitational-wave detectors on two continents caught a ripple in spacetime. This event did not fit neatly into the usual story of how black holes form. The signal, labeled ...

Before I read your question, I had never heard of a white hole. So, I scampered over to my friend Vivienne Baldassare to find out more. She’s an astrophysicist at Washington State University. She told ...

The black hole was bigger than expected, and while the answer was hiding in plain sight, it still rewrites what we thought was possible. Reading time 4 minutes When LIGO broke news of an ...

"This imbalance is important because without it there would be no stars, no galaxies, no planets, and no us." When you purchase through links on our site, we may earn an affiliate commission. Here’s ...