supermassive black hole,

Fastest growing black hole ever found eats a sun every 2 days

The black hole is 12 billion light years away and is unlikely to ever get near Earth. With a mass of about 20 billion suns, the black hole would have appeared 10 times brighter than the moon if it was located at the center of the Milky Way. May 16, 2018
Mars helicopter

NASA sending a robot helicopter to Mars in 2020

The Mars Helicopter will be the size of a football and weigh about 1.8 kg. Its twin blade setup will spin ten times faster than Earth choppers and if it does manage to fly, it will take 90-second-long trips over the course of a month. May 13, 2018
asteroid,

Asteroid spotted past Neptune and no one knows how it got there

There is an asteroid near Neptune which should not be there. Most space rocks float in a belt between Mars and Jupiter, and this is one of the first asteroids that has actually traveled across three gas giants and settled in the far outer reaches of the Solar System. May 10, 2018