QUESTIONS AND ANSWERS 2023
Supernova
A gigantic explosion in which a massive star collapses and throws its outer layers into space
How elements heavier than iron were formed
Protostar
A contracting cloud of gas and dust; the earliest stage of a star's life
Nebula
A large cloud of dust and gas in space
Main Sequence Star
A normal star that is undergoing nuclear fusion of hydrogen into helium.
Black Hole
An object in space whose gravity is so strong not even light can escape.
Red Giant
A star that expands and cools once it runs out of hydrogen fuel