Spill Now on Instagram: "😂 Sharks have been swimming in Earth’s oceans for more than 400 million years, meaning they existed long before dinosaurs, trees, and even the rings of Saturn. Today, scientists have identified over 500 different shark species, ranging from the enormous whale shark, which can grow over 40 feet long and feeds mainly on plankton, to small deep sea sharks that glow in the dark. Far from being simple predators, sharks have some of the most advanced senses in the animal king

Galaxies on Instagram: "The experiment shown here was carried out on the International Space Station to see how combustion happens in a 0g environment. They used a 50/50 fuel mixture of iso-octane and heptane, tested in a standard air environment (21% oxygen and 79% nitrogen at 1 atm). The results are quite interesting. The only glaringly obvious feature is that the flame looks spherical. The reason for that is simply that it has no reason to look otherwise. On Earth, gravity creates an axis tha