On December 11, 1972, Apollo 17 touched down on the Moon. This was not only our final Moon landing, but the last time we left low Earth orbit. With the successful launch of the Orion capsule, NASA is finally poised to go further again. So it’s important to remember how we got to the Moon — and why we stopped going.
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.
