A comprehensive new study combines decades of research to reveal that we're missing an essential component in our understanding of how the universe works.

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through ...

Black holes are mysterious objects, and one theory posits that our universe exists inside of one. It sounds strange, but ...

An imaginative and compelling book reveals how radio waves help us tune in to our universe – and even search for alien ...

A major international effort has produced an ultra-precise measurement of the Universe’s expansion rate, confirming it’s ...

Although many people consider the cosmos to be a peaceful, stunning environment, the truth behind its appearance offers an ...

Stephen Hawking's theory of black hole evaporation clashes with the laws of quantum mechanics. A new paper finds a way around ...

An international team of astronomers have carried out some of the most precise measurements yet of how quickly the universe ...

Amid ongoing toilet trouble, the Artemis II astronauts reflected on the wonder of sailing through deep space to the moon.

Now it seems that wormholes, those shortcut tunnels through time and space that Albert Einstein theorized and that science fiction depicts as portals between two distant galactic points, are at the ...

The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back ...

A mission that took four astronauts farther than any human has ever traveled in the history of mankind has made people feel a ...