The universe is expanding. This was the great revelation of the 20th century, thanks to astronomer Edwin Hubble, whose work showed that galaxies are moving away from us, with more distant galaxies ...

As The Infinite Monkey Cage explores what we know about the subatomic particles that form our universe, we take a look at some of the freaky facts and ... make up around 5% of the universe.

A teaspoonful of their matter would weigh as much on Earth as an elephant—5.5 tons. White dwarfs typically ... which emits no energy. Because the universe's oldest stars are only 10 billion ...

There will be light, feebly, at the end. In all its forms—visible and invisible—it saturates the universe. Light is more than a little bit inscrutable. Modern physics has sliced the stuff of ...