physics – Page 6 – National Radio Astronomy Observatory

Newtonian and General Relativistic Theory of Gravitation

In fact, both the Newtonian and General Relativistic (due to Einstein) theories of gravitation are correct on large scales. …

I believe that the only way to significantly change the orbit of a planet is to have it interact…

The ocean on Earth gets its blue color due to the fact that it absorbs light from the red…

Since the light from a distant star is a point source for any measurement that we want to make,…

This is actually an application of spherical trigonometry. A good description of this calculation, including an online tool to…

I don’t believe that the scenario you describe, were a moon is effectively shared by two planets in a…

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