Assertion: black hole's field | /r/LocatedNear | the deepest wells of gravity
Facets:
value: in universe
type: LOCATION
Source sentences:
text: A 40-mile-wide black hole 8,000 light years from Earth named V404 Cygni yielded the first precise measurements of the magnetic field that surrounds the deepest wells of gravity in the universe.
text: They precisely measured the magnetic field that surrounds the deepest wells of gravity in universe and found that the magnetic strength around the black hole is approximately 400 times lower than what we previously thought.