The Greatest Scenes of All Time on Instagram: "The Martian was released on this day in 2015 🚀 The Martian is one of those movies that makes science feel downright badass. Directed by Ridley Scott, it’s about astronaut Mark Watney (Matt Damon) getting stranded on Mars and using nothing but brains, grit, and a lot of potatoes to survive until rescue. Damon absolutely carries the film—funny, human, and vulnerable all at once. You really buy into his “science the hell out of this” attitude, and it’

NASA Earth on Instagram: "Aerosols are tiny solid or liquid particles in our atmosphere like dust, sulfates from pollution or volcanoes, wildfire smoke, and more. NASA’s GEOS model shows how these particles can affect the air we breathe—even from far away. In this visualization of aerosol data from the GEOS model, different colors represent different aerosols. Sea salt is blue, dust is pink, smoke is orange, and sulfates from pollution and volcanoes are green. Data is shown for Aug. 1 to Sept. 1