What big teeth you have: Tooth root surface area can determine primate size

With no Solid Surface, the Atmosphere of Jupiter Behaves Quite Differently Than Earth

In 1971-72, Mariner 9 photographed ~80% of Mars’ surface from orbit, revealing ancient river beds, craters, extinct volcanoes, canyons, layered polar deposits, wind-driven sediments, weather fronts, ice clouds, dust storms & fogs. It renewed hope of past life on Mars. It’s still orbiting Mars today.

Surface chemistry reveals corrosive secrets