Myth: The hymen is a sheet of tissue that blocks a women’s vagina.
Reality: Guys, the hymen is a thin membrane that only partially blocks the vaginal opening — if a woman is… more
Myth: Every gene in your DNA codes for exactly one protein.
Reality: One gene does not equal one protein. Many genes make multiple different proteins, depending on how the mRNA from… more
Myth: Your blood turns blue when it’s out of oxygen.
Reality: Your blood is never blue: It turns dark red when it’s not carrying oxygen. Blood only looks blue because you… more
Myth: Summer is warm because you are closer to the sun.
Reality: The northern hemisphere of the Earth is not closer to the sun when it is summer, nor is the southern… more
Myth: Diamonds come from coal.
Reality: Most diamonds aren’t formed from compressed coal. Instead, they’re carbon that is compressed and heated 90 miles below the… more
Myth: The Sahara is the biggest desert on Earth.
Reality: Antarctica fits the bill since it receives only two inches of precipitation a year and has few land animals. At… more
Myth: Tectonic plates move because volcanism pushes them apart.
Reality: Older edges of a tectonic plate are cooler and denser, causing them to sink into the mantle where they’re… more
Myth: There was a global warming pause.
Reality: Earth’s average surface temperature hasn’t really budged since the start of the 21st century, but 70% of the planet is… more
Myth: Mount Everest is the tallest mountain on Earth.
Reality: The world’s tallest mountain technically is not Mount Everest. Mount Everest is the tallest mountain above sea level, but… more