A few weeks ago, a team of astronomers at the Harvard-Smithsonian Center for Astrophysics made huge strides toward confirming a pretty major hypothesis. In 1979, the physicist Alan Guth conceived of a force that essentially facilitated the Big Bang, allowing the universe to spread itself outward like a balloon inflating indefinitely.
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.
watching 2001 space Odyssey will clear everything up for you guys