Exotic Objects, Stars If a supernova’s original star is massive enough to form a black hole, why is there any explosion? Why doesn’t the entire mass of the original star simply fall onto the newly formed black hole and instantly vanish?
Exotic Objects, Stars I’ve read that the gas ejected during supernova explosions glows at millions of degrees; I also have read that gas is tenuous. How would a million-degree gas feel physically? Would I vaporize while flying through such a cloud?
Exotic Objects, Stars A recent study found that a type Ia supernova’s original star could be anywhere from 0.9 to 1.4 times our Sun’s mass. Astronomers use these blasts’ brightnesses to estimate distances, so are those measurements now incorrect?
Exotic Objects, Robotic Spaceflight, Stars Hubble finds supernova companion star after two decades of searching
