Do moving masses create another field, similar to how a moving charge creates a magnetic field?
Yes, albeit, a very tiny (gravitomaqnetic) field according to current theory.
Why do you ask?
Please, what "current theory"?
In 1918 Lense and Thirring, originally developed the idea using Einstein's newly developed Theory of General Relativity. And so the effect, which was originally derived for rotational motion, is generally referred to as the Lense-Thirring field.
Today, the term 'gravitomagnetism' is popularly used and often refers to its deveopment from a 'linearized' version of Gen Rel.
I ask because I read about it somewhere and thought it was very interesting.
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