Portside

The Dark Energy Survey has surveyed dark energy and found that our universe is unlikely to rip into pieces. I think that’s good news for the cosmos. Let’s have a look at what they did and what we can learn from it.

All forms of energy affect the expanding Universe. But if matter and radiation slow the expansion down, how does dark energy speed it up?

Everything else in the universe is either a particle or field. Dark energy behaves as neither, and it may be a property inherent to space itself.