What Is a Black Hole? Here’s Our Guide for Earthlings

Welcome to the place of no return — a region in space where the gravitational pull is so strong that not even light can escape it. This is a black hole. Science The New York Times
By JOANNA KLEIN and DENNIS OVERBYE from NYT Science https://nyti.ms/2OYuGRg
April 9, 2019 at 02:00PM