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

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

A neutrino sensor array, ARCA, lines the Mediterranean seafloor near Sicily. A physicist took ARCA’s first huge win to a warm ...

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

George Smoot, who won a Nobel Prize in Physics for his role in the "discovery of the blackbody form and anisotropy of the ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

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

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

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

It's a celestial event that has astronomers both excited and puzzled. Dan Smith has the story of how a gamma-ray burst across ...

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

Euclid Consortium, the international group that manages the European Space Agency’s Euclid space telescope, has published the ...