SpaceX is just days away from shooting up a crew capsule to test a launch escape system designed to save astronauts' lives.
Buster, the dummy, is already strapped in for Wednesday's nearly mile-high ride from Cape Canaveral, Florida. He'll be alone as the mock-up capsule is fired from a ground test stand and soars out over the Atlantic, then parachutes down.
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.
