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      What If Show
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      Body

      5 Things That Could Happen If Humans Can Regrew Teeth

      July 23, 2025
      Earth

      What If You Spent a Month on Snake Island?

      March 31, 2022
      Body

      What If You Were Sucked Into a Whale’s Blowhole?

      June 16, 2021
      Science

      What If A Mega-Tsunami Hit The United States?

      April 21, 2019
      Earth

      What If All Life on Earth Lived in the Oceans?

      January 18, 2021
      MSN New, Earth

      Earth’s Oceans Slowly Lose Their Salt, and the Entire Planet Begins to Collapse

      Earth depends on countless natural systems working together. The atmosphere, oceans, land, and living organisms constantly influence each other, creating the conditions...

      HTS MSN

      A 340 kg Bear Killed 7 People in 6 Days, Then One Hunter Followed Its Blood Trail

      In 1915, the small village of Sankebetsu in Hokkaido, Japan, became the scene of one of the country’s most horrifying wildlife attacks. A massive Ussuri brown...

      Earth, MSN New

      What If We Relocated an Entire City?

      Coastal cities across the globe are planning how they will keep the sea away as it rises. One solution? Just move the city. How much would it cost? How do you lift a...

      Cosmos

      What If a Rogue Star Collided With the Sun?

      A rogue star is headed straight for our Sun. If these two stars slam into each other, it could spell the end of all life on our planet. How could a rogue star end up in...

      HTS MSN

      The Flight That Should Have Never Happened: The Juliane Koepcke Story

      Imagine boarding a one hour flight with your mother on Christmas Eve. You’re 17 years old. The holidays are here. In just a little while, you’ll be...

      MSN New, Cosmos

      700 Million Years at Light Speed Just to Arrive, and That Is Only the Edge

      Build a spacecraft that travels at the speed of light, the absolute ceiling of physics, and point it at this destination. You would arrive in 700 million years. And...

      HTS MSN

      The Bug That Bites Your Face While You Sleep

      They feed on the blood they suck from their prey. Animals and juicy humans like you are in these deadly insects’ diets. They’re also called assassin bugs, for a good...

      MSN New, Cosmos

      Invisible Highways Already Connect the Planets, and We Could Use Them to Reach the Edge of the Solar System

      Buckle your seatbelts. We’re about to take a ride on the cosmic superhighway. What exactly are these celestial autobahns? How would they help us explore the furthest...

      Humanity

      What If Everyone Started Inbreeding Tomorrow?

      With so many varieties in our skin tones, hair colors, and features, the human race is a marvel of evolution. But what if we all decided to preserve our family traits...

      Humanity, MSN New

      Imagine Being Born in the Middle Ages

      Have you ever been curious about Medieval life? Would you travel back in time if you could? Do you think you would enjoy it? How long would you last? After 200 years of...

      MSN New, Earth

      A World Without Ice Would Transform Our Cities Like This

      Sea levels have gone up 20cm (8″) since 1850, but it was unevenly distributed around the globe. That’s roughly half the height of a bowling pin, 3.5 times the size...

      MSN New, Cosmos

      What If You Dove Into Titan’s -290°F Methane Lakes for 5 Seconds?

      Titan is one of the most fascinating moons in the entire Solar System. It orbits Saturn like a frozen jewel, wrapped in a thick orange atmosphere and covered in lakes...

      MSN New, Humanity

      Why China Would Never Actually Invade Russia, Even If It Could

      Keep your friends close and your rivals even closer. China and Russia have one of the most complicated relationships in the world. They share a massive border, cooperate...

      HTS MSN

      How to talk to your dog, According To Science

      “Who’s a good girl? You are! Yes, you are!” If you have ever talked to your dog using a high pitched, baby like voice, you are not alone. Millions of dog owners...

      MSN New

      One Wrong Step Sends You Into a Lake Sealed Under Antarctica

      Have you ever wondered what it would be like to explore one of Jupiter’s moons without ever leaving Earth? Or what would happen to your body under a monstrous...

      MSN New, Humanity

      What If the Speed of Light and Sound Were Switched?

      Nothing can travel faster than light. But what if we switched the rules a little? Imagine a world where the speed of light was slower. Way slower. Yep, about the speed...

      HTS MSN

      Why Playing Dead Would Never Actually Stop a Charging Elephant

      This safari incredible. You’ve seen lions, cheetahs, and other amazing wildlife. Your friends are going to love these photos. Suddenly, the ground starts shaking...

      HTS MSN

      What Makes Riker’s Island One of America’s Most Notorious Jails?

      “The nicknames that it has, the Bridge of Pain, Gladiator School, Torture Island, the name speaks for itself.” Those are the words of former Rikers inmate Vidal Guzman...

      HTS MSN

      How to Survive Being Poisoned, According To Science

      Even if you never realize you’ve been exposed to something toxic, your body will usually give warning signs. Symptoms like vomiting, difficulty breathing, sudden...

      MSN New, Cosmos

      What If Voyager 1 Crashed on an Alien Planet?

      Voyager 1 is on a journey that will outlast civilizations, outlive the Sun’s familiar neighborhood, and eventually drift into regions of space no human made object has...

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      Popular What Ifs

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      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 You Were Alive 200 Million Years Ago?

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