Life's Little Mysteries

Life's Little Mysteries answers fascinating questions about the world around you and the stuff in it, from things in the news and on your mind to crazy questions you didn't even know you had.

  • What Was the First Life on Earth?

    What Was the First Life on Earth?

    March 01, 2017 | Article

    The earliest evidence for life on Earth arises among the oldest rocks still preserved on the planet, dating back some 4 billion years.
    Read More

  • Why the Octopus Lost Its Shell

    Why the Octopus Lost Its Shell

    March 01, 2017 | Article

    The ancestors of octopuses and squid once sported hard shells, but when did they lose their "mobile homes" and become agile, soft-bodied swimmers? A new study finds that this change may have occurred during the Jurassic and Cretaceous periods.
    Read More

  • The 18 Biggest Unsolved Mysteries in Physics

    The 18 Biggest Unsolved Mysteries in Physics

    February 27, 2017 | Countdown

    The more we learn about the universe, the more questions seem to arise. Our picks for the biggest open questions remaining in physics.
    Read More

  • Could a Spacecraft Fly to the Sun?

    Could a Spacecraft Fly to the Sun?

    February 26, 2017 | Article

    Humans have sent spacecraft to the moon, the red planet Mars and even distant interstellar space, but can we send a spaceship to the scorching sun?
    Read More

  • Are Viruses Alive?

    Are Viruses Alive?

    February 25, 2017 | Article

    Viruses are infectious, tiny and nasty. But are they alive?
    Read More

  • Battle of the Sexes: Who Sweats More?

    Battle of the Sexes: Who Sweats More?

    February 24, 2017 | Article

    Do men sweat more than women? Turns out, body size and shape is a better indicator of sweat than sex.
    Read More

  • What Does the Vice President Do?

    What Does the Vice President Do?

    February 19, 2017 | Article

    Vice President Mike Pence has said that the United States would "hold Russia accountable" for their actions and would support NATO. But what authority does the VP have?
    Read More

  • What's the Oldest Thing Alive Today?

    What's the Oldest Thing Alive Today?

    February 18, 2017 | Article

    The oldest living thing on Earth today is … well, it's controversial. Figuring out the oldest thing alive requires defining "alive." It also requires a definition of "organism."
    Read More

  • Why Do Antiseptics Sting When Put on Cuts?

    Why Do Antiseptics Sting When Put on Cuts?

    February 18, 2017 | Article

    Imagine you're chopping vegetables when — oops! — you slice your finger. You run to the sink to wash the cut and then ready yourself for the inevitable sting that will come when you put antiseptic on the wound.
    Read More

  • Are Trees Vegetarian?

    Are Trees Vegetarian?

    February 09, 2017 | Article

    Humans can be vegetarians, choosing to forgo meat, but what about trees? After all, trees need only soil, sunlight and water to survive, right?
    Read More

    • First
    • Previous
    • 5 / 196
    • 6
    • 7
    • 8
    • 9
          • 1
          • 2
          • 3
          • 4
          • 5 / 196
          • 6
          • 7
          • 8
          • 9
          • 10
          • 20
          • 30
          • 40
          • 50
          • 60
          • 70
          • 80
          • 90
          • 100
    • Next