News tagged with dark energy

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How can space travel faster than the speed of light?

Cosmologists are intellectual time travelers. Looking back over billions of years, these scientists are able to trace the evolution of our Universe in astonishing detail. 13.8 billion years ago, the Big Bang ...

Feb 23, 2015
4.8 / 5 (76) 18

How fast is the universe expanding?

The Universe is expanding, but how quickly is it expanding? How far away is everything getting from everything else? And how do we know any of this anyway?

Feb 10, 2015
4.3 / 5 (26) 13

Is the universe actually shrinking?

Whoa, here's something to think about. Maybe the Universe isn't expanding at all. Maybe everything is actually just shrinking, so it looks like it's expanding. Turns out, scientists have thought of this.

Feb 03, 2015
2.6 / 5 (23) 23