The Bulletin of the United States Fish Commission includes a number of scientific illustrations that manage to be aesthetically pleasing as well as informative, including these exotic looking crustaceans from Volume 23 part III. The full text can be found here: http://www.biodiversitylibrary.org/ia/bulletinofunit2331903unit#page/209/mode/1up
When you’re a ghost but still get zoomies
White Sands + blue hour = different planet (OC) [1703x2321] by: nature_and_such
On January 24, 2015, the Hubble Space Telescope photographed three of Jupiter’s moons in transit across the face of the gas giant. This time-lapse imagery condenses 42 minutes, showing the progression of the moons Io (right), Callisto (center), and Europa (left). Each moon’s orbital velocity varies, proportionally slower with greater distance from Jupiter.
(HubbleSite)
Asteroid Vesta’s size compared to other asteroids.