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      What If Show
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      Earth

      Top 3 Worst Places to Swim in

      November 20, 2021
      Cosmos

      What If All Nukes Exploded in Space?

      July 18, 2025
      Body

      What If Seeds Could Grow in Your Stomach?

      July 5, 2020
      Body

      What If We Could Communicate From Brain to Brain?

      June 6, 2018
      Science

      What If You Stepped Into The Vacuum of Space?

      June 22, 2018
      HTS MSN

      How to Stay Alive When a Bull Charges Straight at You

      When you’re partying on the streets of Pamplona, get ready for an intense nine day celebration. But offend this guest of honor, and you may be the one seeing red...

      HTS MSN

      He Saved His Wife From the River, Then a Crocodile Dragged Him Under

      The wife of a man who was killed by a crocodile said that one of his last actions had been to save her life. In August 2024 Dave Hogbin, who was 40 at the time, was...

      MSN New, Humanity

      4 Volunteers Went 10 Days Without Salt in the 1930s, and They Were Too Tired to Eat

      In the 1930s, Dr. Robert McCance of Cambridge University’s Department of Experimental Medicine convinced four people to give up salt completely for ten days. He...

      Cosmos, MSN New

      Life If You Were Born on Mars

      Martians might really exist… In the future. But instead of the aliens of sci-fi movies, martians would be humans born and raised on Mars. Why would your skin be...

      Earth, MSN, MSN New

      12 Things You Were Lied to About Earth

      1. The Earth Rotates Every 24 Hours No matter how many times you set it, your watch will always be a little off. That’s because the common belief that our planet...

      Science

      What If the Universe Was White Instead of Black?

      If the Universe is full of stars, why doesn’t it appear white? And if it did, what would that look like? Would all the black holes suddenly become visible? And if...

      Humanity, MSN New

      The Entire History of Human Evolution Explained

      Life on Earth began in a way that still boggles the mind. Around 4.5 billion years ago, a chemical process called abiogenesis occurred, where life emerged from non-life...

      MSN, MSN New

      What Would Happen If You Broke the Rules in North Korea?

      Welcome to one of the most restrictive countries in the world. Ruled by an enigmatic, tyrannical and violent leader, North Korean citizens and tourists can be threatened...

      HTS MSN

      Someone’s Breaking Into Your House. Your First Move Matters Most

      It’s the terrorizing stuff of an anxiety-riddled movie plot. A house break-in can be very traumatic, and leave you feeling vulnerable. It can even threaten your...

      MSN New, Earth

      This Is How Cockroaches Can Survive Almost Anything

      Here’s a nasty housemate we have all had the displeasure of knowing. Unfortunately, a remote Antarctic community might be the only place you could escape their...

      MSN New, Earth

      Lake Natron Explained: What Would Happen to You

      Before anyone even thinks about jumping in, it helps to understand what Lake Natron actually is. Located in northern Tanzania, this lake has no normal outlet to rivers...

      MSN New, HTS MSN

      Why He Didn’t Survive: Kim Jong Un’s Half-Brother

      On the morning of February 13, 2017, travelers moved through the crowded terminals of Kuala Lumpur International Airport without noticing anything unusual. Flights...

      Humanity

      What If There Were an Underground City Below Denver Airport?

      Scroll down to watch our video. This may look like a regular airport, but people believe that beneath it there is an underground city. And not just any underground city...

      Humanity

      What If Spiders Were the Size of Humans?

      Eight legs, eight eyes, sharp fangs, and bullet-proof webs. They’re hairy, they’re scary, and now, they’re human-sized. As many as 427 million people...

      Technology

      What If the World Is Only Your Illusion?

      So, is our world just an illusion? Why do some physicists believe that physical matter isn’t real? What scientific experiments have changed our view of reality...

      MSN New, Earth

      5 of the Most Dangerous Hikes in the World

      Mount Hua, China This hike leads to the South Peak of Huashan, one of the Five Great Mountains of China. Its summit stands at about 2,155 m (7,100 ft), and the infamous...

      MSN New, Earth

      Secret Mayan Megacity Has Been Discovered

      A remarkable archaeological discovery hidden beneath the dense rainforests of Guatemala is changing what experts know about the ancient Maya civilization. Using advanced...

      HTS MSN

      He Stepped Into Quicksand, and the Rescue Took 12 Terrifying Hours

      In the middle of a hike through Utah’s Zion National Park, Ryan and his girlfriend Jessika were crossing a pond after spending hours on the trail. They had already...

      Science

      What If Life Didn’t Originate on Earth?

      [dx_custom_adunit mobile_id=”RTK_v1lP”] All of the systems, beliefs, emotions, and experiences that we call life are taking place on a tiny rock floating...

      MSN New, Humanity

      A Rare Few People Claim to Remember Something No One Should Be Able To

      Imagine remembering the exact moment you entered the world. The first light you saw, the first sounds you heard, and the strange sensation of leaving the safety of the...

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      Popular What Ifs

      Body

      What If a COVID Vaccine Were Available Tomorrow?

      Earth

      What If Giant Mushrooms Grew on Earth?

      MSN New, Cosmos

      What If Humans Tried to Land on Kepler 69c?

      Body

      What If You Jumped Into a Pool Full of Honey?

      Earth, Cosmos

      8 Facts About What Would Happen If We Poured All of Earths Water on the Sun

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      About

      What If is presented by Underknown, a production company creating a variety of short-doc series that search for the underlying truth of how our world operates and how it came to be. Our shows take you to the frontiers of science and make the most complex ideas and theories entertaining and accessible.

      Popular What Ifs

      What If We Terraformed Venus?

      5 Technologies That Could Save or Destroy Humanity

      What If We Woke Up Volcanoes to Fight Climate Change?

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