After studying images and data that characterize a range of mountains that run for 420km across Pluto's Cthulhu feature, planetary scientists now think they are seeing peaks capped with methane snow.
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.
