The small organs are being made from human skin cells which are turned into neutrons and printed in 3D to resemble the structure of the brain.
Scientists hope that the micro brains will aid research that could help battle the damage done by Alzheimers disease.
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.