The week in pictures: March 30-April 5, 2013
In the past seven days, a black hole eats a super-Jupiter, a detector studying antimatter finds possible new clues about dark matter, Hubble breaks record in search for farthest supernova, and more.
NASA's Goddard Space Flight Center/Axel Mellinger
Swift sizes up Comet ISON
Using images acquired over the past two months, astronomers have made initial estimates of Comet ISON’s water and dust production and used them to infer the size of its icy nucleus. Learn more »