general relativity – National Radio Astronomy Observatory

Does a Gravitational Lens Really Magnify Objects?

In fact, the magnification due to a gravitational lens is directly analogous to the magnification of objects that one…

Question: Information says that the gravitational waves, recently detected by LIGO, correspond (according to Einstein theory equations) to the…

Question: I googled this question while looking for an answer to something even more vague: what is a black…

Question: Regarding galaxy rotation. Although the supermassive black hole at the center of a Galaxy probably isn’t strong enough…

Question: VLBA measurements have been used to confirm gravitational bending of radio waves by the Sun in confirmation of…

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