The waxing gibbous moon will appear close to Saturn in the southeastern sky at sunset on Nov. 29 as Neptune lurks unseen nearby.

Saturn shines with the waxing moon at sunset on Nov. 29

Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots.

Physicists and philosophers have long struggled to understand the nature of time: Here's why

What do volcanic plumes look like from space?

Satellites capture aftermath of Ethiopian volcano's 1st eruption in recorded history (images)

But being in this sweet spot doesn't automatically mean a planet is hospitable to life.

Beyond the habitable zone: Exoplanet atmospheres are the next clue to finding life on planets orbiting distant stars

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.

NASA probe captures stunning photos of Earth and moon on the way to infamous asteroid Apophis

Makeup and skincare can get tricky with age — here’s how to streamline your routine and still glow.

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