Astronomers think they finally know origin of enormous “cosmic smoke rings“ - Ars Technica
arstechnica.comSubmitted by arstechnica3419 in science
Massive stars burn out quickly. When they die, they expel their gas as outflowing winds.
Submitted by arstechnica3419 in science
Massive stars burn out quickly. When they die, they expel their gas as outflowing winds.