Gravitational-wave detectors have captured their biggest spectacle yet: two gargantuan, rapidly spinning black holes likely ...

The bold question-askers at What If explore why having a black hole in our Solar System would be a catastrophic scenario.

Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the ...

The Laser Interferometer Gravitational-wave Observatory (LIGO) is no stranger to making history and breaking records. In 2015 ...

A collision observed between two black holes, each more massive than a hundred suns, is the largest merger of its kind ever ...

Small, compact galaxies seen in the early universe have puzzled astronomers – finding these unusual objects closer to home ...

Black holes with masses below about 60 times that of the Sun – a size small – are created when a star dies. Yet ones between ...

To date, the collaboration has detected dozens of merger events since its first Nobel Prize-winning discovery. Early detected ...

Hidden in the ‘Infinity Galaxy,’ a black hole floats in space where none should exist, upending old ideas about black hole birth.

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...