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These are gravitational waves with frequencies of order nanohertz, which corresponds to periods of months to decades.
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https://nanograv.org/science/topics/low-frequency-gravitational-waves
and it's 1AM early friday morning PST
https://nanograv.org/news/15yrDataSet
a highly successful pioneering of new kind of very low frequency gravity wave background astronomy 15 years in the making
i think all Sarahs will take pride
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It's meticulous scientists like Sarah who make sure the analysis is right!
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https://twitter.com/duetosymmetry/status/1674444948299735040
it's tomorrow!!!
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Collectively, this mix of signals combines to form a random or 'stochastic' buzz known as the gravitational wave background, and it's one of possibly the most highly-sought detections in gravitational wave astronomy.
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https://www.sciencealert.com/a-big-gravitational-wave-announcement-is-coming-thursday-heres-why-were-excited