Learn about why inflation theory says the Big Bang wasn’t actually the beginning of the universe; why hookah may be worse for you than cigarettes; and why you don’t actually run out of willpower, even if you think you do.

Learn about how some plants may have a sense of sight. Then, learn about how emoji reflect cultural differences around the world, in the final edition of our “Hashtag Tuesdays” mini-series with internet linguist Gretchen McCulloch.

Learn about why there could be planets even more habitable than Earth; an online class that boosted grades by changing students’ beliefs; and why optimism may lead to better sleep.

Learn about the Johari window, a method to get to know yourself better; why sibling rivalry can actually be a good thing; and why there’s no center of the universe.

Learn about new insights into the Chesapeake Bay impact crater, America’s largest asteroid impact; why birds sing; and why your bruises change colors while they heal.

Learn about how scientists came up with a thousand questions that stump computers; what happened to the ghost ship Mary Celeste; and why a warm bath can help you sleep better.

Learn about how you can go on a simulated mission to Mars (in Spain); and, what the weather forecast really means when it says there’s a chance of rain. You’ll also learn about how people around the world talk differently online, with internet linguist Gr

Learn about why social media may not be as bad for mental health as we thought; why the Streisand effect says censoring information will probably backfire; and why tailgating at the light won’t get you through any faster.

Learn why the phrase “money can’t buy happiness” isn’t always true. Then, learn how different generations write differently online, with some help from internet linguist and author Gretchen McCulloch.

Learn about how debate can be good for brainstorms; a little rodent that can teach humans how to love; and the surprising things you can find in libraries, with special guest Alex Lent.