From serene sunsets over crashing waves to the vibrant life beneath the surface, these 20 ocean wallpapers will transform ...

“This is the first-ever evidence for the gravitational wave background. We’ve opened a new window of observation on the universe.” The gravitational wave background, a kind of cosmic noise ...

In a historic first, astronomers have detected low-frequency gravitational waves using a galaxy-sized antenna of millisecond pulsars in the Milky Way. Astronomers have heard the faint hum of ...