Looking up at the night sky, it may seem our cosmic neighborhood is packed full of planets, stars and galaxies. But ...

This is the reason why we can’t see what happened at the very beginning of the universe. There is no free path for light to get from the Big Bang to our telescopes. We simply cannot see beyond the ...

The Big Bang,the event that gave birth to our universe,is a theory that continues to fascinate and bewilder scientists and ...

One possibility is that the background waves come from defects in the very early universe as it changed phases. The idea is that this left an imprint in space-time, like the cracks that form when ...

For more than half a century, scientists have tried to understand dark matter—a mysterious form of matter that doesn’t emit ...

Astronomers are trying to listen to the universe's background hum — a cascade of gravitational waves believed to exist since the first rapid inflation of space following the Big Bang over 13.8 ...

Neutrinos are subatomic particles with no charge and very little mass that are known to weakly interact with other matter in ...

The universe is expanding, but two exquisitely precise yardsticks say it’s doing so at two different speeds. That’s not a ...

The detection of a predicted universal background of gravitational waves rippling across the fabric of space-time was announced last Wednesday by the NANOGrav consortium of over 190 scientists at ...

“We have evidence of what we call ‘the gravitational wave background,’ which is a hum of gravitational waves coming from all of the gravitational waves in the universe,” Dr. Sarah Vigeland ...

First predicted by Albert Einstein more than a century ago, gravitational waves are ripples in the fabric of the universe that travel through everything at the speed of light almost entirely ...