A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have instead ...

However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...

The Fantastic Four are on the most dangerous, and shortest adventure of their lives, as they go back to the start of ...

A controversial theory suggests the observable universe is the result of matter rebounding after the collapse of a black hole ...

Crucially, this bounce occurs entirely within the framework of general relativity, which applies on large scales such as ...

New observations from the James Webb Space Telescope (JWST) suggest the cosmos may be much older than once believed. For ...

As long as the question of beginnings is unanswered, we will always feel half-begun and a mystery to ourselves.

The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the ...

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic ...

As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s ...

Brian Schmidt explains dark energy’s role in accelerating universe expansion, 1998 discovery’s impact, and urges students to ...

Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.