The cosmos might be playing a different game than we thought. Scientists have spent decades believing our universe was ...

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be ...

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

Whether the Universe will 'end' at all is not certain, but all evidence suggests it will continue being humanity's cosmic ...

The universe is expanding. That much is clearer. But it’s less clear whether this expansion is accelerating or slowing down.

Black holes bend space and time in extreme ways — enough that some scientists think entire universes can form inside them. If ...

When you bake a loaf of bread or a batch of muffins, you put the dough into a pan. As the dough bakes in the oven, it expands into the baking pan. Any chocolate chips or blueberries in the muffin ...