The curious minds at What If discover the universe’s evolution in just ten minutes, covering the Big Bang, galaxy formation, and cosmic expansion.

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole new model to account for gravity’s influence.

Combining observations from several powerful telescopes, astronomers have detected a gargantuan, 'wobbling' black hole ...

For years, the James Webb Space Telescope has been spotting enormous black holes in the early universe that defy all ...

New Hubble observations explain how blue straggler stars form, showing that binary systems in low-density clusters play a key role ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...