Dispelling some Medieval armour myths (with cool pics) -- click for some really interesting reading!
After she is exiled by Odin to the more desolate stretches of Vanaheim, Sigyn's clothing choices once again become practical and simple.
Dune patterns and flow. Mars
This arresting image of sand dunes in the Noachis Terra of Mars spans a little over half a mile across. The different sizes and shapes of sand dunes are from changes in wind direction and wind strength over time.
Infinity Imagined: textures on Mars
NASA's Mars rover Curiosity acquired this image using its Mast Camera (Mastcam) on Sol 712
The north polar cap of Mars, with water ice clouds sweeping over the plains of Vastitas Borealis. The ice cap spans roughly 1000 kilometers. Observed by the Mars Express orbiter in May 2014.
10 Pictures Showing How We Finally Found Water on Mars Image: Gullies showing evidence of water carving on Mars, 2007 / NASA/JPL/University of Arizona
High Sand Dunes | by sjrankin Edited Curiosity PR image