The question answered by the paragraph is: How strong is the gravity force of black holes? The paragraph explains that black holes have a gravitational field so powerful that nothing, not even light, can escape from them.
Read this paragraph by the National Aeronautics and Space Administration (NASA) about black holes.
Don't let the name fool you: A black hole is anything but empty space. Rather, it is a great amount of matter packed into a very small area – think of a star ten times more massive than the Sun squeezed into a sphere approximately the diameter of New York City. The result is a gravitational field so powerful that nothing, not even light, can escape. In recent years, NASA instruments have painted a new picture of these strange objects that are, to many, the most fascinating objects in space.
Which question is answered by the paragraph?
Which NASA instruments are used to study black holes?
How much light exists inside black holes?
How strong is the gravity force of black holes?
How large in diameter are most black holes?
1 answer