Mobile systems and cyber security expert Yan Wang doesn’t wear a smart watch.
“It knows too much,” says Wang, an assistant professor of computer science at Binghamton University in Upstate New York. “If you are using a smart watch, you need to be cautious.”
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.