Google-born Project Loon could help deliver internet and cell service to storm-ravaged Puerto Rico, providing essential communications capabilities as the island continues to reel from devastation wrought by Hurricane Maria.
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.