Scott Kelly has been on the International Space Station for 300 days now, and is nearing the end of an almost year-long mission. To pass the time, he's haunted the station's hallways in a spooky mask, eaten space lettuce, and even grown flowers.
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.
