Lesson 4 Lives of Stars

Term Definition
Nebula a large cloud of gas and dust in space
Protostar a contracting cloud of gas and dust with enough mass to form a star
White Dwarf the blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space
Supernova the brilliant explosion of a dying super giant star
Neutron Star the small, dense remains of a high-mass star after a supernova
Pulsar a rapidly spinning neutron star that produces radio waves
Black Hole an object whose gravity is so strong that nothing, not even light, can escape