Updated: Oct 15, 2019
1- It rains diamonds on Saturn and Jupiter.
It turns out, a couple of distant planets sport some serious bling. Atmospheric data indicates that the gaseous planets of Saturn and Jupiter experience hail storms of diamonds, due to lighting storms that turn methane into soot, which hardens into graphite then diamonds as it falls. One scientist told the BBC that the biggest diamonds would be about a centimeter in diameter—or “big enough to put on a ring.”
2- Craving ice is a symptom of iron deficiency.
If you like crunching ice after you finish your soda, you might be suffering from anemia. Also known as “pagophagia,” the compulsive eating of ice may not just be a nervous tick, but a way of cooling inflammation in the mouth caused by a lack of iron, according to the Mayo Clinic. So if you like chomping down on those cubes, get thee to a doctor, stat.
3- An octopus has three hearts.
Two of their hearts work just to circulate blood past the octopus’ gills, with a third to keep the blood moving through its organs. (The third heart stops beating while the animal is swimming, which is why they tend to crawl rather than swim).
4- High heels were first designed for men.
Though closely identified as a female fashion today, high heels were first designed for men. At the end of the 16th century, Persian-inspired style was all the rage in Europe, according to the J. Paul Getty Museum, and heels were seen as being virile and masculine—and a great way to boost your height a few inches.
5- Microscopic mites live on your face.
Don’t freak out, but your face is crawling with eight-legged, spider-like creatures. Fortunately, they are microscopic and impossible to see—but, according to the BBC, they’re mites with long, worm-like bodies residing in hair follicles and pores or sebaceous glands.
6- You can’t breathe and swallow at the same time.
“This is because the food and fluids we swallow and the air we breathe in both travel down the same part of our throat,”
7- Australia is larger in diameter than Pluto.
You’d think a celestial body would be bigger than any country on Earth (even if that country is also a continent). But it turns out that’s not the case. Pluto measures 2,370 km across, compared to Australia’s 4,000-km diameter. That means Australia is almost twice as big!