Are we living in a hologram? In short — no, but the principle that 3D information can exist in 2D space may still hold true. Mathematically assuming that the universe is a hologram has allowed us to advance string theory and the designs of super computers.
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.