#3 Chiara Mingarelli - NANOGrav, Background Gravitational Waves, Black Holes
Cool Worlds Podcast
The Gravitational Wave Background
LIGO is using two arms to see the distance on Earth, the space itself stretch. This change is so small, it's the fraction of a size of a proton over three miles or five kilometers. So this creates what we call a gravitational wave background. And at very high frequencies, this hasn't been detected yet because mergers happen on such short time scales that there aren't enough simultaneous ones happening for them to be seen.
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