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noun

astrophysics

as-troh-FIHZ-ihks
noun
1
The branch of science that applies the laws of physics to study stars, planets, and other objects in space.
"The lecture covered the astrophysics of neutron stars."

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In plain EnglishThe branch of astronomy that focuses on the physics of stars, planets, and space phenomena.

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The lecture covered the _____ of neutron stars.

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