Stars have life spans and are born in a nebula, a cloud of dust and gas. Gravity pulls the dust and gas together. Stars die when they use all their fuel. Huge groups of stars make up clusters. Galaxies are formed by spinning clouds of gas, and individual stars are born within galaxies.
Stars have life spans and are born in a________a cloud of dust and gas. Gravity pulls the dust and gas together. Stars die when they use all their fuel. Huge groups of stars make up _______ area. Galaxies are formed by spinning clouds of gas and individual stars are born within galaxies.
1 answer