These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Tuesday, September 24, 2019
Martian Frosting
Today's Astronomy Picture of the Day shows the northern hemisphere of Mars, where frozen carbon dioxide and water are sublimating off dune fields. Poke around and find other images from the polar regions of Mars during this kind of event. There are some amazing images to be seen around this (let along the rest of the planet!).
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment