The edge of the universe is not a simple wall, but a question tied to expansion, redshift, dark energy, cosmic structure, and ...

What lies beyond the observable universe? It is one of the greatest unanswered questions in science. From cosmic inflation and parallel universe theories to the possibility that space itself extends ...

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 ...

The chances of intelligent life emerging in our universe—and in any hypothetical ones beyond it—can be estimated by a new theoretical model which has echoes of the famous Drake Equation. This was the ...

Add Yahoo as a preferred source to see more of our stories on Google. This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on ...