Located 500 light-years from Earth, Kepler-186f was the first Earth-sized planet found to be orbiting within its star’s habitable zone, the area where water can be liquid on a planet’s surface.
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.
