The phrase "a massive body" is correct and usable in written English.
It can be used to describe something large in size, often in contexts related to physics, astronomy, or metaphorically to refer to a significant entity or group.
Example: "The scientists were amazed by the discovery of a massive body orbiting the distant star."
Alternatives: "a large entity" or "a substantial mass".
Why would spacetime warp if it does not know a massive body exists next door?
Because of a massive body of evidence, including the fact that we've tried the alternate experiment before.
The US civil rights movement is a perennially popular topic that has spawned a massive body of literature.
A great rendition of the St. Matthew Passion should have the feeling of an eclipse, of a massive body throwing the world into shadow.
Albert Finney, now seventy, has become as fearsome as an ancient whale — a massive body, with a gaping mouth, bulging eyes, and a coruscating voice.
However, the presence of a massive body curves space-time, as if a bowling ball were placed on the rubber sheet to create a cuplike depression.
The largest, dubbed LARES, will test the Lense-Thirring effect, a prediction of general relativity that concerns the distortion of spacetime by a rotating massive body.
The presence of a third massive body not only helps clear the primordial Kuiper Belt but can also result in long lived binary KBOs.
García-Bellido and Collins [ 6] reconstructed a very massive body compared to our observations (see above), but their frontal reconstruction underestimates the relative size of the appendages (their text-Figure eleven A).
Albert Finney, now seventy, has become as fearsome as an ancient whale a massive body, with a gaping mouth, bulging eyes, and a coruscating voice.
First predicted by Albert Einstein, the ring occurs because of gravitational lensing, which happens when light from a distance source, such as a galaxy or star, is warped around a comparatively closer massive body like another galaxy or black hole.
