Highlight the description of light.
One spectacular gravity footprint appears as smudged, multiple images of galaxies. Such images can form when light from faraway galaxies passes near a black hole but does not cross the event horizon. Sometimes the galactic light splits up and bends around the black hole. Some light goes left and some goes right. Some goes up; some goes down. The beams of split-up light make it around the black hole but may not come back together again.
—A Black Hole Is NOT a Hole,
Carolyn Cinami DeCristofano
What does this description help a reader understand?
A.how scientists locate black holes
B.the speed of light in space
C.how scientists locate different galaxies
D.how scientists bend light
