by Analyzing data from NASA's Hubble Space Telescope and several other observatories, astronomers have concluded that the bright red supergiant star Betelgeuse quite literally blew its top in 2019, losing a substantial part of its visible surface and producing a gigantic Surface Mass Ejection (SME).
This is something never before seen in a normal star's behavior.
Our Sun routinely blows off parts of its tenuous outer atmosphere, the corona, in an event known as a Coronal Mass Ejection (CME).
But the Betelgeuse SME blasted off 400 billion times as much mass as a typical CME!
Source
This is something never before seen in a normal star's behavior.
Our Sun routinely blows off parts of its tenuous outer atmosphere, the corona, in an event known as a Coronal Mass Ejection (CME).
But the Betelgeuse SME blasted off 400 billion times as much mass as a typical CME!
Source
