gravitational waves

Detection of gravitational waves opens "new window" on universe

They are tiny distortions of space time incredibly difficult to detect on Earth, but a group of scientists has done it. They say the detection of gravitational waves marks the beginning of a new era in astronomy.

Einstein would be beaming: Physicists detect gravitational waves

A scientific collaboration that began decades ago to detect gravitational waves

Evidence of gravitational waves discovered, US physicists say

US researchers say they have detected gravitational waves, which physicist Albert Einstein first described 100 years ago as "ripples in the fabric of space-time."