For morning viewing: 3 timelapses of last week's Perseid meteor shower

Last weekend's Perseid display may go down as the most spectacular meteor shower of 2013. Did you miss it? Don't worry, we've got you covered. Here to wrest you from the clutches of Monday morning indolence are three arresting timelapses of the shower, each under 90 seconds long. » 8/19/13 6:40am 8/19/13 6:40am

This noctilucent cloud video is the perfect vacation for your brain

Noctilucent clouds are some of the most poorly understood meteorological phenomena on Earth. High-hanging and electric-blue in hue, the ethereal, night-shining formations feature prominently in this beautiful film by photographer P-M Hedén. » 8/13/13 1:20pm 8/13/13 1:20pm