Nasa engineers looking to monitor charged particles hitting the Earth's atmosphere have come up with a simple, low-cost, 'swarm' of satellites that can talk to each other in orbit.
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.