大象传媒

Scientists are claiming to have detected gravitational waves for the first time. It represents the last great confirmation of Albert Einstein's ideas, and opens the door to a completely new way to investigate the Universe. But many Radio 4 listeners still aren鈥檛 sure what they are.

The presenter Paddy O鈥機onnell asked for your definitions, newsreader Corrie Corfield read them and Professors Monica Grady and Jon Butterworth expertly reviewed them.

(Image: Professor Monica Grady and Jon Butterworth)