Don't blink. There's a total eclipse of the moon Saturday—and it's an unusually short one.
If there are clear skies, the 3½-hour spectacle is visible from start to finish from the western U.S. and Canada where it occurs before dawn.
Skygazers in the Midwest and East Coast only get part of the lunar show.
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.
I'll be up for this. Missed the chance to many times here recently.