*On November 23, 2023 the LIGO gravitational wave observatories in Hanford Washington and Livingston Louisiana detected the largest Black Hole collision ever found, one had a mass of about 103 solar masses and the other was 137 solar masses, and it resulted in an intermediate sized Black Hole of approximately 225 Solar masses; the missing 15 Solar masses having been converted into the energy of gravitational waves. One of the Black Holes was spinning at 80% the speed of light and the other at 90%.*
*It's not thought that single stars can produce Black Holes larger than about 60 solar masses because stars large enough to do that would end their lives in a Pair-Instability Supernova, the brightest type of supernova, and they are so violent they blow themselves entirely apart and leave behind nothing, neither a neutron star nor a Black Hole. So Black Holes of that size must've come from the merger of smaller Black Holes.* *Incidentally the Trump administration wants to mothball one of the two LIGO detectors, probably the one in Washington because that is not a red state. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* esx -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv0St7R_D4%2B46psqQR_AQSX-upSGp1RwxbkaJcfx%3DmuNsA%40mail.gmail.com.
