9 Things You Didn’t Know About Black Holes
An artist’s impression of GRB 221009A, which may have heralded the birth of a black hole.Image: NASA/Swift/Cruz deWilde Black holes. Despite their names, the enigmatic objects are opposite of vacuous. They are some of the universe’s densest objects, with masses ranging from the size of stars to several hundred million stars. Their gravitational fields are … Read more