You may think that time started 13.8 billion years ago at the birth of the universe, but physicists with alternative ...

By looking ever further back in time, the James Webb Space Telescope is at last revealing the first galaxies – and a very ...

The Big Bang Theory has expanded into two spin-off series, but only one actor has played three different characters across ...

From the beginning of time to the origins of life, our "when" special series tackles the timing of crucial events and the ...

Galaxies, planets, black holes: to most people, everything about our Universe sounds and feels enormous. But while it's true ...

NASA's flagship space telescope captured flares from the disk of superheated material around the black hole, revealing the dynamic—and explosive—physics at our galaxy's core.

Engaging articles, breathtaking images and expert knowledge Issues delivered straight to your door ...

Using NASA's James Webb Space Telescope, Northwestern astrophysicists gained the longest, most detailed glimpse yet of the supermassive black hole at the center of the Milky Way.

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...