Which of the Following Best describes a Black Hole Quizlet?

Black holes are very dense objects in our universe. They can trap light and have very strong gravitational forces. An astronaut inside a space probe would approach the event horizon and see that the second hand is moving slower than normal. But for an outside observer, this second hand would move at a normal rate.

According to Einstein’s general theory of relativity, black holes can emit gravitational waves. These waves will spiral toward each other, and two neutron stars will spiral toward one another. In 2016, gravitational waves were detected by the LIGO observatory. A galaxy’s rotation takes several hundred million years. Over that time, individual stars move in and out of spiral arms.