SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aero-nebula-gas-dust

What is a nebula?

A giant cloud of dust and gas in space, where new stars can form.

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  1. A small rocky moon
  2. A giant cloud of dust and gas ✔
  3. A star that has burned out

Why: A nebula is a huge cloud of gas, mostly hydrogen, mixed with dust. Some nebulae are star nurseries where gravity pulls material together into new stars. Others are made from material blown off by dying stars.

Huh, didn't know that: Some nebulae come from the explosion of a dying star, called a supernova.

The dad joke
Why did the baby star feel so safe? It grew up in a nebula, the best nursery in the galaxy.
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References

Answer: A giant cloud of dust and gas. A nebula is a huge cloud of gas, mostly hydrogen, mixed with dust. Some nebulae are star nurseries where gravity pulls material together into new stars. Others are made from material blown off by dying stars.

  1. NASA Space Place: What Is a Nebula? spaceplace.nasa.gov/nebula/en
    A nebula is a giant cloud of dust and gas in space.
    Checked 2026-10-10.

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