Seeing Quadruple, Seeing the Universe More Clearly

An exploding star has astronomers seeing quadruple--and they couldn't be happier. Today in the AAAS journal Science, an international team of researchers led by Ariel Goobar at Stockholm University presents unique images of a special type of stellar explosion, called a Type 1a supernova, that will offer important new insights into gravity, dark matter, and the acceleration of the universe.These images are so fascinating and scientifically valuable in part because they capture gravity in action. ...