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Gravitation

Gravitational Lensing

An image of the galaxy cluster Abell 1689 actings as a gravitational lens, with arcs of background galaxies around it. — Arcs of background galaxies being lensed by the
cluster Abell 1689.
Credit: NASA

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Kepler's Laws: Find the Mass of the Sun

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What Is Kepler's Third Law?

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What Is Kepler's Second Law?

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What is Kepler's First Law?

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What is Gravity?

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Create An Expanding Universe

Submitted by admindev on Mon, 28/03/2022 - 15:45

The 'Space Weight' Calculator

Submitted by admindev on Mon, 28/03/2022 - 09:26

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