The world got a little more magical this week. Amazon showed off its vision of the future of grocery shopping with Amazon Go, and the consensus is that the checkout-less store is truly amazing — assuming the online retail giant can pull it off.
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.