Stars that fuse hydrogen to helium in its core
What is a main sequence star?
When a star runs out of nuclear fuel and the outer layers form into a planetary nebula
What is a white dwarf star?
When a massive star collapses
How do neutron stars form?
When a star runs out of hydrogen fuel for nuclear fusion
What is a red giant?
Stars with more than four solar masses end their life
What is a supernova?
when two protons, the nuclei of hydrogen atoms, merge to form one helium nucleus
How does nuclear fusion start?
When white dwarf star's energy radiates away, it becomes dark and cold.
What causes a black dwarf star?
A type of neutron star with an extremely powerful magnetic field.
What is a magnetar?
VY Canis Majoris
What is the largest red giant?
When two stars orbit around each other.
What is a thermal runaway supernova?
The brightest star in the night sky
What is Sirius?
The cooling rate of white dwarfs
How can scientists determine the age of the universe?
Rotating neutron stars that send off pulses of radiation
What are pulsars?
When a red giant core's temperature grows, helium fuses to form carbon
What is the triple alpha process?
What happens after a supernova?