The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...
It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...
Biggest vs smallest - how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, from quantum particles to the observable universe’s edge. A journey into ...