Scientists have many big questions to tackle about the universe, including how big it actually is. But even the proposed answers aren't straightforward.

We’ve known for some time now our universe is expanding, and in recent years discovered this was happening considerably faster than we’d expected. Yet despite momentous innovations in telescope and ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...

Director of The Australian National University Institute for Space and the Advanced Instrumentation Technology Centre, Australian National University We’ve known for some time now our universe is ...

AK PETERS: 2008. 400 pp. $39. Is space finite or infinite? This question has perplexed scientists and driven astronomical observations for generations. When found to be incompatible with observations ...

It turns out a monkey – given an infinite amount of time and a typewriter – wouldn't be able to write Shakespeare before the universe ends, according to a new study. HARRY SHEARER: (As Charles ...

GEOMETERS are wont to speak (it seems to me) somewhat laxly of “the line at infinity” as if there were only one such line in a plane; in a certain but not in the most obvious sense this is true—viz.

There may be an infinite amount of energy locked in the vacuum of space-time. So could we ever harness this energy for anything useful? The idea of vacuum energy comes from quantum field theory, which ...

(via Sabine Hossenfelder) Is the universe really infinite? Or could it close back on itself like a sphere? If it’s infinite, how can it expand? And is it true that there might be copies of you in it?

The universe is big, really, really big. Although according to a new paper, it may literally be infinitely smaller than we previously thought. PBS Space Time is available to stream on pbs.org and the ...