March 13, 2016 at 12:38AM

Today I Learned: 1) There is a subreddit for turtle facts. Of course there is a subreddit for turtle facts. http://ift.tt/1ResFyP. Check it out. A few gems from the subreddit front page: moss is really important for most species of turtles kept as pets, as they get stressed if they don't have something to hide in; painted turtle females store sperm from the males they mate with for future fertilization; turtles get cataracts in much the same way as humans, and recently a ~100 year old snapping turtle by the name of Darth Vader became the first turtle to receive cataract surgery before being released into the wild. 2) Newly hatched* platypus babies are ridiculously small. They look more like fetuses than platypuses. Check out http://ift.tt/1MfgZUT to learn what a baby platypus looks like. * Remember, not only do platypuses have bills, incredibly painful venom, and have five pairs of chromosomes, they also lay eggs. 3) Satellite debris is a serious threat to spacecraft. Today I learned the extent of that threat -- according to Wiki, there are about 2,000 satellites in orbit at a time these days, and about one is destroyed by debris collision every year.