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, ...

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 ...