Otters have pouches under their forearms where they store their favorite rocks used for cracking shellfish open, and snacks for eating later or for bringing back to their dens.
1000000000000066600000000000001 is a prime, a palindrome, and named after a prince of Hell, Belphegor, due to the 666 in the middle and 13 zeros on either side. Fun sidenote, it's represented with the symbol for Pi - but upside down.
Thanks to a poorly chosen font and some good natured fun, the The International Astronomical Union has officially named Venus' quasi-moon 2002VE as 'Zoozve'.
Contrary to popular imagery, the asteroid belt is mostly empty. Spacecraft pass through the asteroid belt with virtually no chance of a collision, and in fact considerable effort is required for a close flyby of even one asteroid.
The largest known prime number, known as M82589933, is 24,862,048 digits long and can be calculated by multiplying together 82,589,933 twos and then subtracting one.