Main Sequence Star
White and Black Dwarfs
Neutron Star
Red Giants
Supernova
100

Stars that fuse hydrogen to helium in its core

What is a main sequence star?

100

When a star runs out of nuclear fuel and the outer layers form into a planetary nebula

What is a white dwarf star?

100

When a massive star collapses

How do neutron stars form?

100

When a star runs out of hydrogen fuel for nuclear fusion

What is a red giant?

100

Stars with more than four solar masses end their life

What is a supernova?

200

when two protons, the nuclei of hydrogen atoms, merge to form one helium nucleus

How does nuclear fusion start?

200

When white dwarf star's energy radiates away, it becomes dark and cold.

What causes a black dwarf star?

200

A type of neutron star with an extremely powerful magnetic field.

What is a magnetar?

200

VY Canis Majoris

What is the largest red giant?

200

When two stars orbit around each other.

What is a thermal runaway supernova?

300

The brightest star in the night sky

What is Sirius?

300

The cooling rate of white dwarfs

How can scientists determine the age of the universe?

300

Rotating neutron stars that send off pulses of radiation 

What are pulsars?

300

When a red giant core's temperature grows, helium fuses to form carbon

What is the triple alpha process?

300
Becomes an ultra-dense neutron star.

What happens after a supernova?

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