"Courtesy of NASA, those of you who have access to a 3D printer can now revel in the possibilities of creating your own galaxy by printing almost any outer space object you desire to include in your design."
The supermassive black hole is 40 million times as massive as the sun and powers a quasar that existed 700 million years after the Big Bang.
The asteroid zoomed by Earth at a perfectly safe distance of around 1.8 million miles (2.9 kilometers).
Images show surprise changes to the spacecraft as it interacted with the atmosphere.
