Ian O'Neill: "The best thing about covering news about the awesome vastness and incredible complexity of the cosmos is that, occasionally, some genuinely weird stories pop up out of nowhere."
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.