S4, a $900-million cosmology experiment, would answer one of the greatest questions in physics. Instead it’s become another cautionary tale of pursuing big science amid shrinking budgets ...

Dark matter, a type of matter that does not emit, absorb, or reflect light, is predicted to account for most of the ...

Known as the Hubble tension, the issue arises from conflicting measurements of how fast the universe is expanding. Now, a new ...

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further ...

How big is the universe? In this video, we embark on a journey from our solar system to the edge of the observable cosmos.

"Whether you want to explore dark energy, dying stars, galactic powerhouses, or probably even entirely new things we’ve never ...

A stronomers have discovered that the Milky Way might be just a small piece of a much larger cosmic structure than previously ...

Listen up, stargazers and skeptics, because we're about to dive headfirst into the surprisingly ancient history behind the ...

Athina Rachel Tsangari’s visceral historical drama about the undoing of a rural British community shines in its gorgeous, disorienting details.

Scientists have proposed Earth is in the middle of a huge void in space, potentially resolving the cosmic mystery known as ...

Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than ...

Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this ...