The XS-1 is a space plane under development by the U.S. military's high-tech agency, the Defense Advanced Research Projects Agency (DARPA). The major goal of the project is to reuse the spacecraft frequently, with a proposed launch rate of 10 missions in just 10 days.
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.
