
The stellar nurseries
The long adult life of stars
The dramatic deaths of small stars
Supernovas and cosmic leftovers
YOUR GOAL
Master of How stars are born and die
artiteacher Death of small stars
Shedding cosmic rings, / Glowing nebula sings, / White dwarf reigns.

artiteacher A white dwarf is the hot, incredibly dense, Earth-sized core left behind after a star sheds its outer layers.

artiteacher Dying medium stars gently cast off their outer layers, creating colorful, expanding shells of gas called planetary nebulae.
Heavy white dwarfs: One teaspoon of matter from a white dwarf star would weigh about 15 tons on Earth.
A small, extremely dense stellar remnant that has exhausted its nuclear fuel. In 1930, Subrahmanyan Chandrasekhar calculated the maximum mass limit for these fading stellar cores.
What Earth-sized, dense stellar remnant is left behind at the center of a planetary nebula?
What will our Sun become immediately after it runs out of hydrogen fuel in its core?
Which planets are expected to be swallowed when our Sun expands into a red giant?
In what year was the famous Ring Nebula, an example of a planetary nebula, first discovered?

