Space is filled with a variety of objects, some blisteringly hot, some tremendously cold, but areas with little to nothing at all never drop to absolute zero thanks to a fossil relic left over from ...

The biggest objects in the universe are clusters of galaxies, such as the supercluster we live in right now - and including Abell 370, which was captured in a sprawling glittery space-scape by the ...

This video explores what scientists mean when they talk about the edge of the observable universe. Using real observations ...

Add Yahoo as a preferred source to see more of our stories on Google. About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. After a century of observations spanning the breadth of the cosmos and theoretical insights that ...

Add Yahoo as a preferred source to see more of our stories on Google. In space, there are four dimensions: length, width, height and time. scaliger/iStock/NASA via Getty Images Plus About a century ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...