Science
Discover facts about science. Small discoveries that change the way you see familiar things.
Science

Axolotls possess the terrifyingly impressive ability to flawlessly regenerate missing limbs, completely regrowing their spinal cords, hearts, and even portions of their brains without any permanent scarring.
Axolotls possess the terrifyingly impressive ability to flawlessly regenerate missing limbs, completely regrowing their spinal cords, hearts, and even…
Discover more
Black holes do not actually suck things in like a cosmic vacuum cleaner, but rather they just exert an incredibly strong gravitational pull identical to any other object of similar mass.
Black holes do not actually suck things in like a cosmic vacuum cleaner, but rather they just exert an incredibly strong gravitational pull identical to any…
Discover more
Earth's core is actually hotter than the surface of the sun, reaching temperatures of roughly six thousand degrees Celsius due to radioactive decay and residual heat from planetary formation.
Earth's core is actually hotter than the surface of the sun, reaching temperatures of roughly six thousand degrees Celsius due to radioactive decay and…
Discover more
Pluto has not completed a single orbit around the sun since its discovery in 1930, and it will not complete its first observed revolution until the year 2178.
Pluto has not completed a single orbit around the sun since its discovery in 1930, and it will not complete its first observed revolution until the year 2178.…
Discover more
Female ferrets can die if they go into heat and do not mate, a bizarre biological condition known as aplastic anemia caused by prolonged estrogen toxicity.
Female ferrets can die if they go into heat and do not mate, a bizarre biological condition known as aplastic anemia caused by prolonged estrogen toxicity. If…
Discover more
Saturn is so remarkably un-dense that if you could find a bathtub large enough to hold it, the entire gas giant would actually float on top of the water.
Saturn is so remarkably un-dense that if you could find a bathtub large enough to hold it, the entire gas giant would actually float on top of the water.…
Discover moreA bigger world.
One discovery
at a time.
Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Echidnas have a four-headed penis, an evolutionary adaptation that remains one of the most baffling and ridiculous anatomical features ever discovered by baffled zoologists.
Echidnas have a four-headed penis, an evolutionary adaptation that remains one of the most baffling and ridiculous anatomical features ever discovered by…
Discover more
Oxygen transitions from a colorless gas into a pale, beautiful blue liquid when it is cooled to incredibly frigid temperatures below minus 183 degrees Celsius.
Oxygen transitions from a colorless gas into a pale, beautiful blue liquid when it is cooled to incredibly frigid temperatures below minus 183 degrees…
Discover more
Chainsaws were originally invented by two Scottish doctors in the late eighteenth century as a surgical instrument to assist with difficult childbirths, rather than cutting down trees.
Chainsaws were originally invented by two Scottish doctors in the late eighteenth century as a surgical instrument to assist with difficult childbirths,…
Discover more
Polar bears possess pitch-black skin beneath their thick, translucent fur, an evolutionary adaptation designed to soak up as much of the sun's radiant heat as possible.
Polar bears possess pitch-black skin beneath their thick, translucent fur, an evolutionary adaptation designed to soak up as much of the sun's radiant heat as…
Discover more
Glass is technically an amorphous solid, completely shattering the widespread urban legend that it is a highly viscous liquid that slowly flows downwards over centuries.
Glass is technically an amorphous solid, completely shattering the widespread urban legend that it is a highly viscous liquid that slowly flows downwards over…
Discover more
Cheetahs are so incredibly inbred from a historical population bottleneck that you could theoretically perform skin grafts between any two unrelated cheetahs without their immune…
Cheetahs are so incredibly inbred from a historical population bottleneck that you could theoretically perform skin grafts between any two unrelated cheetahs…
Discover more
Teflon is so incredibly slippery and unreactive that the only way engineers can actually get it to stick to your frying pan is by aggressively sandblasting the metal and using…
Teflon is so incredibly slippery and unreactive that the only way engineers can actually get it to stick to your frying pan is by aggressively sandblasting…
Discover more
Gallium is a perfectly real metal that looks exactly like aluminum but has a melting point of just eighty-five degrees Fahrenheit; if you fashion a spoon out of it and hand it to…
Gallium is a perfectly real metal that looks exactly like aluminum but has a melting point of just eighty-five degrees Fahrenheit; if you fashion a spoon out…
Discover more
Yellowstone National Park is actually sitting on top of a dormant supervolcano that has erupted three times in the last two million years and has the capacity to plunge the…
Yellowstone National Park is actually sitting on top of a dormant supervolcano that has erupted three times in the last two million years and has the capacity…
Discover more
Black holes emit a theoretical type of thermal radiation known as Hawking radiation, which means over an unfathomably long period of time, they will eventually evaporate entirely…
Black holes emit a theoretical type of thermal radiation known as Hawking radiation, which means over an unfathomably long period of time, they will…
Discover more
Sound cannot travel through the vacuum of space because it requires a medium like air or water to transmit mechanical waves, meaning the universe is a completely silent void of…
Sound cannot travel through the vacuum of space because it requires a medium like air or water to transmit mechanical waves, meaning the universe is a…
Discover more
Due to the effects of gravitational time dilation outlined in general relativity, your head is slightly older than your feet because it is further away from the Earth's center of…
Due to the effects of gravitational time dilation outlined in general relativity, your head is slightly older than your feet because it is further away from…
Discover more
Cashew nuts naturally grow hanging out of the very bottom of a strange, fleshy pseudo-fruit known as a cashew apple.
Cashew nuts naturally grow hanging out of the very bottom of a strange, fleshy pseudo-fruit known as a cashew apple. The incredibly toxic shell encasing the…
Discover more
Butterflies rely entirely on highly sensitive chemoreceptors located on their tiny legs to taste their food.
Butterflies rely entirely on highly sensitive chemoreceptors located on their tiny legs to taste their food. When these delicate insects gently land on a…
Discover more
Cats almost always land squarely on their feet due to an innate biological reaction called the righting reflex combined with an incredibly flexible skeletal structure.
Cats almost always land squarely on their feet due to an innate biological reaction called the righting reflex combined with an incredibly flexible skeletal…
Discover more
Sperm whales naturally produce a waxy, foul-smelling substance in their digestive system called ambergris to protect their intestines from the razor-sharp beaks of giant squid.
Sperm whales naturally produce a waxy, foul-smelling substance in their digestive system called ambergris to protect their intestines from the razor-sharp…
Discover more
Male seahorses are the only creatures in the entire animal kingdom that experience pregnancy and physically give birth to offspring.
Male seahorses are the only creatures in the entire animal kingdom that experience pregnancy and physically give birth to offspring. During their elaborate…
Discover more
Bullwhips create their iconic cracking sound not from leather hitting leather, but by creating a miniature sonic boom as the tip of the whip breaks the sound barrier in midair.
Bullwhips create their iconic cracking sound not from leather hitting leather, but by creating a miniature sonic boom as the tip of the whip breaks the sound…
Discover more