Curiosity’s Tracks Are Gone With The Wind

Mars may have an atmosphere just 1% the density of Earth’s but it can still stir up enough of a breeze to quickly cover a rover’s tracks, as evidenced in the animation above. Captured by Curiosity’s downward-looking Mars Descent Imager (MARDI) camera on Jan. 23 and 24, 2017, the two pictures show an approximately 3-foot-wide…

Like a Rolling Stone

A boulder leaves a bounding trail in the lunar dust Here’s a neat image for today: a detail of the central peak of Eratosthenes Crater, taken by the Lunar Reconnaissance Orbiter Camera (LROC), shows a trail a rolling boulder has left in the regolith (the fancy word for Moon dirt.) The boulder, located in the…