ARTi

How stars are born and die

Chapter 1

The stellar nurseries

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Chapter 2

The long adult life of stars

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Chapter 3

The dramatic deaths of small stars

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Chapter 4

Supernovas and cosmic leftovers

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YOUR GOAL

Master of How stars are born and die

Ch 3 · The dramatic deaths of small stars
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Little Star Poof

teacher Little Star Poof

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teacher Shedding cosmic rings, / Glowing nebula sings, / White dwarf reigns.

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The dense white dwarf remnant core

teacher The dense white dwarf remnant core

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Fun Fact

Heavy white dwarfs: One teaspoon of matter from a white dwarf star would weigh about 15 tons on Earth.

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The beautiful planetary nebula phase

teacher The beautiful planetary nebula phase

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Glossary
white dwarf (noun)
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.

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Quiz

What Earth-sized, dense stellar remnant is left behind at the center of a planetary nebula?

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Gossip

Which planetary nebula shape looks the most beautiful?

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Quiz

What will our Sun become immediately after it runs out of hydrogen fuel in its core?

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Quiz

Which planets are expected to be swallowed when our Sun expands into a red giant?

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Quiz

What is the glowing shell of gas shed by a dying medium-sized star called?

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Quiz

What is the approximate size of a white dwarf star?

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Quiz

Why are there currently no black dwarfs in our universe?

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Quiz

How does a white dwarf generate new heat to keep itself shining?

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Quiz

In what year was the famous Ring Nebula, an example of a planetary nebula, first discovered?

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