On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star, dubbed M31-V1, was key to showing that the universe extended far beyond ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and that negative cosmological constant) will dictate if it begins to retract ...

Dark matter, mysterious invisible stuff that makes up most of the mass of galaxies including our own Milky Way, is confounding scientists again, with new observations of distant galaxies conflicting ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us humans, on interstellar scales it’s glacially slow. Even at a photon’s ...

The Copernican Principle, named in honor of Nicolaus Copernicus (who proposed the heliocentric model of the Universe), states that Earth and humans do not occupy a special or privileged place in the ...

The signal, seen for just 0.1 seconds, could be a sign of "another universe and connected to our universe through a throat" according to the team.

Many scientists have rejected the fine-tuning argument. Italian physicist Carlo Rovelli described the idea that nothing would exist without fine-tuning as “intellectual arrogance and stupidity” and ...

The reasonable mind must hold that our universe has one beginning,' reads the thesis of the book, 'God, the Science, the Evidence: The Dawn of ...

From GPS to innovations in computing and optics, technologies developed for space research at UC Santa Cruz touch nearly every aspect of modern life.

Sometimes, the simplest explanation is the best one," Professor Gupta said. "Maybe the universe’s biggest secrets are just tricks played by the evolving constants of nature." ...

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