by A massive star that exploded in the Pinwheel Galaxy in May appears to have unexpectedly lost approximately one sun's worth of ejected mass during the final years of its life before going supernova, new observations have shown.
This discovery reveals more about the enigmatic end days of massive stars.
That’s because this star had exploded in the nearby Pinwheel Galaxy (Messier 101), which is just 20 million light-years away in the constellation of Ursa Major, the Great Bear.
Cosmically speaking, that's pretty close.
Source
This discovery reveals more about the enigmatic end days of massive stars.
That’s because this star had exploded in the nearby Pinwheel Galaxy (Messier 101), which is just 20 million light-years away in the constellation of Ursa Major, the Great Bear.
Cosmically speaking, that's pretty close.
Source
