All matter has a gravitational field that attracts other objects. The more mass an object has, the greater its gravitational field will be. For example, the Earth has a greater gravitational field ...
This meant that light, which ordinarily traveled in straight lines, could curve if it traveled across a gravitational field. This curving path of light meant that that "field" was really a curving ...
The Indian Ocean "gravity hole" is a region where Earth's mass is reduced, leading to weak gravitational pull, lower-than-average sea levels and a puzzle scientists have only just begun to solve.
The astronomers found that light from the star was indeed stretched to longer wavelengths by the very strong gravitational field of Sagittarius A*. The results were perfectly in line with the ...