If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

Sometimes, the simplest explanation is the best one," Professor Gupta said. "Maybe the universe’s biggest secrets are just ...

Galaxy rotation curves have been confounding astronomers for decades. Stars on the peripheries of galaxies rotate faster than visible matter can account for.

Physicists predict the universe’s expansion will reverse, ending in a dramatic big crunch about 20 billion years from now.

Modern cosmology reveals a universe expanding uniformly without a spatial center or edge. The Big Bang wasn't a localized ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if ...

This hypothesis is not new. It was given the affectionate nickname of Big Crunch, and says that the accelerated expansion of ...

Scientists are investigating the possibility that our universe isn't the only one after detecting a mysterious gravitational wave ...

The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the Universe), states ...

The universe will not last forever. In fact, scientists have revealed that its lifespan is almost half over already. A team from the US and China have discovered that our universe will reach its ...