We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ...

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

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 ...

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

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from ...

The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

Astronomers have long thought the universe should look generally the same in every direction, but an anomaly in the radiation ...

Primordial magnetic fields, billions of times weaker than a fridge magnet, may have left lasting imprints on the Universe.

Stuart Fails to Save the Universe is coming to HBO Max. On July 9, the streaming service handed a series order to the Big Bang Theory spinoff starring legacy cast member Kevin Sussman. The news came ...

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