Wired - In 1953, a neurosurgeon cut out two slivers from a patient's brain. The surgery helped the patient's epilepsy, but left him unable to form any new memories.
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.