What have we actually learned after a decase of observing gravitational waves?
Observationsl gravitational-wave astronomy initiated in 2015 when the LIGO detectors heard sounds of spacetime from two colliding black holes. A decade later, over 100 gravitational-wave signals have been observed, originating from all of the combinatorics of merging black holes and neutron stars. Ten years ago, most astronomers expected that by this point in time gravitational-wave observations would have provided novel and robust insights into the evolution of massive stars in our universe. But today, many of the questions that were expected to be answered still loom in uncertainty. What have we really learned so far from gravitational-wave observations?
Speaker: Michael Zevin, Adler Planetarium, Chicago
Monday, 05/05/25
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