(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?
Hosted on MSN
Does the universe have an end?
The atmosphere, a thin veil of molecules enveloping Earth, reaches about 20 miles (32 kilometers) above the planet's surface. It contains countless air particles, invisible to the naked eye, yet ...
Modern cosmology reveals a universe expanding uniformly without a spatial center or edge. The Big Bang wasn't a localized ...
This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. CREDIT: ESA/Hubble & NASA, L. C. Ho, D. Thilker. Get the Popular Science daily ...
The Nature Network on MSN
Could There Be An Edge Of The Universe?
The question of whether the universe has an edge touches one of the deepest mysteries in cosmology. It’s the kind […] ...
I don’t think the universe is infinite, but instead is in the form of the “surface” of a four-dimensional Euclidean hypersphere, so is finite. Nor do I think our universe is the only one: there may be ...
Whenever we look out at the Universe, no matter how powerful our tools or how clever our techniques, there’s always a limit to what we’re capable of observing. No photons, or quanta of light, can be ...
Is the universe infinite? Space and time are assumed to have begun at the big bang. So, if our universe is expanding, it would need infinite time to become infinite in extent. Yet current theory ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback