Today, a panel will advise the US Food and Drug Administration whether Luxturna, a gene therapy treatment developed by Spark Therapeutics, should be approved for general usage. The treatment has already been used to improve the eyesight of more than two dozen people with retinal disorders.
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.