Did primordial black holes born during the Big Bang swallow the universe's antimatter, allowing matter to dominate the cosmos ...

The basic shape that best describes our expanding universe is also the hardest shape for physicists to understand.

The universe — everything in existence — is expanding every second! It's only been about a hundred years that humanity has known this, too — that most galaxies are traveling away from us and the ...

New research has unveiled images of the universe in its infancy—a mere 388,000 after the Big Bang. The snaps of the universe were produced by the Atacama Cosmology Telescope collaboration (ACT), which ...

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the early universe—and that the universe could start contracting at some point.

Astrophysicists have proposed a new theoretical maximum lifespan for the universe, which suggests that dead stars are decaying much faster than previously thought. The estimate of stellar remnant ...

The Big Bang: The moment when the universe — everything in existence — began. ... Right? Turns out, it's not quite that simple. Today, when scientists talk about the Big Bang, they mean a period of ...

For his next trick, your cosmic correspondent for the past quarter-century will (try to) retire. By Dennis Overbye As the day shrinks into its annual darkness, here’s what I know about the cosmos — so ...

The big picture: Astronomers have observed something unusual in the data gathered by the Hubble Space Telescope: the universe seems to be expanding faster today than it was billions of years ago, ...

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