ExtremeTech: The more advanced our space exploration technology becomes, the more radical things we find floating in the void of space. We’ve found a planet made of diamond, and a ones that have diamond rain. Astronomers have discovered that Mars once had falling snow, and that certain asteroids travel with their own moons.
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.
