Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe ...

Imagine a future where the universe, all too soon, tears itself apart. Eventually, space-time is torn asunder, rendering the universe uninhabitable.

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it ...

Powered by the largest digital camera ever built, Rubin Observatory has taken its first images—millions of stars and galaxies ...

In the 1900s, Albert Einstein unified the concepts of space and time, giving us a useful new way to picture the universe. At the start of the 20th century, physicists had a problem: The speed of light ...

The singularity would live in AdS space rather than in a realistic universe, but most holographers expect that all space-time fabrics should fray in similar ways. (Physicists outside the holography ...

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

The evolving cosmos. Dark energy and dark matter are two of the universe's most puzzling components. Together they make up roughly 95% of the cosmos, but because they do not interact with light ...

However, the observable universe extends farther than 13.8 billion light-years in every direction because, for all the time space has existed, it’s also been expanding.