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

Alpha Particles, Beta Particles, Gamma Rays, Positrons, Electrons, Protons, and Neutrons

Purely History on Instagram: "In Spider-Man 3, released in 2007, the creation of Sandman was one of the film’s most technically impressive achievements. Portrayed by Thomas Haden Church, the character required a combination of live-action performance, motion capture, and highly detailed computer-generated imagery to simulate realistic sand behavior on a massive scale. The visual effects team, led by Sony Pictures Imageworks, spent months studying the physics of sand—how it poured, scattered, and