I wonder if we ever have identified or observed a pair of binary stars (red supergiants). And I also wonder what would happen if they exploded, (theoretically) as we haven’t observed it. Also, would currently existing binary stars have enough mass to later on burn out into a red giant, and then explode as a supernova, and would it affect us?
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$\begingroup$ Related: en.wikipedia.org/wiki/Neutron_star#Binary_neutron_stars $\endgroup$– PM 2RingOct 21, 2022 at 23:44
$\begingroup$ Crossposted from physics.stackexchange.com/q/732776/2451 $\endgroup$– QmechanicFeb 2 at 4:17
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