According to the model, dark matter may have started as particles that were hot, light, massless, and fast. As the universe ...

After a century of observations spanning the breadth of the cosmos and theoretical insights that push humanity's vision of ...

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

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

I Cooked Death Row Inmate Last Meals (60,000+ calories) Dow tumbles nearly 900 points after Trump reignites trade war between ...

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a finite timeline, new calculations suggest.

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according ...

A new look at radio maps of the sky shows a pronounced tilt, called a dipole, that astronomers are still unable to explain ...

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

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and that black holes appeared later. But some have proposed that it went the other ...