News tagged with cosmic microwave background

Enormous hole in the universe may not be the only one

Astronomers have found evidence of a giant void that could be the largest known structure in the universe. The "supervoid" solves a controversial cosmic puzzle: it explains the origin of a large and anomalously cold region ...

dateApr 22, 2015 in Astronomy
shares116 comments 10

Brian Schmidt discusses the fast-firing universe

In 1998, a team led by a former Harvard graduate student shocked the astrophysics world by publishing results that said the expansion of the universe, believed to be gradually slowing, was instead accelerating.

dateApr 28, 2015 in Astronomy
shares23 comments 1

What shape is the universe?

The universe. It's the only home we've ever known. Thanks to its intrinsic physical laws, the known constants of nature, and the heavy-metal-spewing fireballs known as supernovae we are little tiny beings held fast to a spinning ...

dateMay 12, 2015 in Astronomy
shares432 comments 13

Is the universe finite or infinite?

Two possiblities exist: either the Universe is finite and has a size, or it's infinite and goes on forever. Both possibilities have mind-bending implications.

dateMar 27, 2015 in
shares445 comments 45

How far back are we looking in time?

The Universe is a magic time window, allowing us to peer into the past. The further out we look, the further back in time we see. Despite our brains telling us things we see happen at the instant we view them, light moves ...

dateMar 06, 2015 in Astronomy
shares499 comments 14