Researchers can now explain how asteroids are formed. Our own planet also has its origins in the same process, a cosmic ocean of millimeter-sized particles that orbited the young sun, according to new research.
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.
The fact is, we will never truly know as we wern't there. Not until a time machine is invented anyway