In late 2017, a European space telescope called CHEOPS will be launched - short for CHaracterising ExOPlanets Satellite. It'll hunt for Earth-like planets outside our solar system, by looking for dimming as those planets cross their stars.
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.
