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Gravity
A force that pulls 2 objects toward each other

As mass increases, the force of gravity...
increases
As distances increases, the force of gravity...
decreases
Luminosity
The brightness of a star as compared to our sun.

Mass
The amount of matter in an object.
Nebula
A cloud of gas and dust that is the birthplace of a star and its planets.

Nuclear Fusion
The process of fusing two light atomic nuclei together to form a heavier atom and a tremendous amount of energy.

Nucleosynthesis
The creation of new atomic nuclei like during nuclear fusion.

Supernova
An explosion that happens in a high mass star near the end of its life.

Sustain
To keep something going.

Hertzsprung-Russell diagram
organizes the family of stars into a diagram; across the bottom is star's temperature and side is star's absolute magnitude; a star's temperature and color depend on how big the star is
