What is the Speed of Gravity?

Do changes in a gravitational field propagate instantaneously, at the speed of light, or at a different speed altogether?

“The only problem with the speed of light, is it gets here too early in the morning.” -Danny Nevrath

One of the most common questions I get asked is whether gravity is instantaneous, or…

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The Universe is out there, waiting for you to discover it.

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Ethan Siegel

Ethan Siegel

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.

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