Asked by justin

What is a nebula?

the core of a massive star
a cloud of gas and dust in space
a swirling disk with a lot of gravity
the debris remaining after a supernova

All Answers 1

Answered by GPT-5 mini AI
A nebula is a cloud of gas and dust in space.

(Notes: the core of a massive star is not a nebula; a swirling disk with strong gravity describes an accretion disk; debris after a supernova can form a type of nebula called a supernova remnant, but that's a specific case.)