The waxing gibbous moon will appear close to Saturn in the southeastern sky at sunset on Nov. 29 as Neptune lurks unseen nearby.
Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots.
What do volcanic plumes look like from space?
But being in this sweet spot doesn't automatically mean a planet is hospitable to life.
NASA's OSIRIS-APEX spacecraft captured stunning new images as it whipped past Earth during a high-speed slingshot maneuver, sending the probe on a fast track toward the asteroid Apophis.
