It feels so obvious that time moves forward that questioning it can seem almost pointless.

The big bang wasn’t the start of everything, but it has been impossible to see what came before. Now a new kind of cosmology is lifting the veil on the beginning of time ...

Thanks to a breakthrough study, scientists now have a more accurate way to predict the behavior of irregularly shaped ...

Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding universe and our place in it ...

The loudest black hole collision ever recorded has just given Einstein’s theory of general relativity its hardest test so far. The event, dubbed GW250114, produced a record-smashing signal-to-noise ...

A German tabloid has described the connection as a romantic relationship, while a source close to Schmidt characterised it as a "close friendship." ...

There are many types of spacetime within physics, the same way there are infinite dimensions in math. Some spacetimes are linked with real-life scenarios within our universe, while others are thought ...

The loudest collision ever recorded between two black holes has allowed scientists to test Einstein’s theory of general relativity in unprecedented detail, showing that the physicist’s predictions ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational wave signal from a binary black hole merger to date, and it gives researchers ...

I’ve yet to meet a physicist that didn’t believe in the beauty of the general theory of relativity—Einstein’s description of gravity as the curvature of spacetime. After all, it’s consistently ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth. Of the more ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...