Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

Astronomers have proposed a new way to solve the so-called “Hubble tension,” but the approach ultimately raises more questions than it answers. By way of background, cosmologists are in a bit of a ...

The “dark energy” field that has fueled the expansion has been weakening over the past 4 billion to 5 billion years, new data shows.

The multiverse theory suggests our universe may be just one of countless others — each with its own laws of physics, ...

This image provided Monday by NASA shows galaxy cluster SMACS 0723, captured by the James Webb Space Telescope. The telescope is designed to peer back so far that scientists can get a glimpse of the ...

Instead of a single Big Bang that brought the universe into existence billions of years ago, cosmologists are starting to suspect there may have been a second transformative event that could explain ...

During the next decade, a delicate measurement of primordial light could reveal convincing evidence for the popular cosmic inflation theory, which proposes that a random, microscopic density ...

Cosmologists can now explore data faster than ever before with a new emulator. As astronomers continue to uncover the mysteries of the universe, their work generates increasingly vast and intricate ...

Asking what existed before the Big Bang is often dismissed as meaningless, since traditional physics breaks down when pushed that far back in time. Yet a new paper published in Living Reviews in ...

Two Johns Hopkins University research scientists who use the Japanese art of paper folding, known as origami, as a metaphor for understanding the complexity of the cosmos have been named winners of an ...

Dark matter--that strange, nearly invisible mass that makes up about a quarter of the Universe--is now on the map. Cosmologists at the California Institute of Technology, Pasadena, have pieced ...