Plus 2023 astronomical events, the 7 biggest airports and speaker of the house

Happy Saturday One way to remember the difference between these two health emergencies is one is a "circulation" problem and the other is an "electrical" problem. What are they? Find out in our article.     Why Did the Russians Seal Up the Kola Superdeep Borehole? It's the world's deepest borehole, and locals swear they can hear souls in hell from its depths. Read more >> The 7 Biggest Airports in the World You might be surprised by which aviation sites landed on the list. Read more >> Chicxulub Crater: Where the End of the Dinosaurs Began A massive asteroid that killed off the dinosaurs also left an enormous undersea crater. Read more >> 22 Astronomical Events to Look Out for in 2023 The sky's the limit this year for stunning meteor showers, supermoons and solar eclipses. Read more >> Do These Nightmare Parasites Hack Snail Brains to Survive? The worms have been accused of turning snails into "zombies," yet the reality is somehow stranger. Read more >> What Does Speaker of the House Do? This week marks the first time in over 150 years that voting for speaker stretched past 11 ballots. And on Friday, the votes were still going. Read more >> Test Your Knowledge If you've been reading our emails this week, you might get these questions right! True or false: January's full moon is a micromoon, the opposite of a supermoon.  According to experts, how often should you wash your bath towel? a) After one use b) After three uses c) Once a week d) Never Which soda can be used to clean mineral stains from your toilet? a) Coca-Cola b) Dr. Pepper c) Pepsi d) Sprite True or false: Schadenfreude is the sense of happiness and shared joy we feel when others succeed. Which of these is not a variety of dragon fruit? a) ACDC b) David Bowie c) Purple Haze d) Voodoo Child Check Your Answers What did you think of this email?   Copyright © 2023 HowStuffWorks, All rights reserved. You are receiving this email because you opted in at our website howstuffworks.com Our mailing address is: HowStuffWorks 4235 Redwood Ave Marina Del Rey, CA 90066 Want to change how you receive these promotional emails? You can update your preferences or unsubscribe from this list