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      Body

      What If You Could Regrow Your Limbs?

      March 25, 2021
      Cosmos

      6 Things That Would Happen If the Moon Had Its Own Moon

      7 months ago
      Body

      What Happens When You Get Sprayed by a Skunk?

      November 21, 2022
      Cosmos

      What If You Could Hear Planets?

      October 20, 2021
      Body

      What If You Were Attacked by a Bear?

      February 21, 2022
      Earth, MSN New

      What If You Lived in the Paleozoic Era?

      The Paleozoic Era represents one of the most transformative periods in Earth’s history, spanning approximately 289 million years from 541 to 252 million years ago...

      Earth

      What If Insects Disappeared From The Planet?

      Are you one of those people who hate these little crawling things? Or maybe these ones with stingers creep you out more?

      Earth

      What If You Were Alive 200 Million Years Ago?

      This is the world 200 million years ago. No cell phones, electricity or even other humans. Would you be able to survive in this new world? Could you get yourself a pet...

      Cosmos

      What If the Great Attractor Swallowed Our Galaxy?

      These balls represent one of the strangest phenomena currently taking place in our Universe. Each ball symbolizes one of 100,000 galaxies — including our own...

      MSN New, Science

      What If You Kept Shrinking 1 cm Every Second?

      A sudden reduction in size, shrinking by one centimeter per second, would expose a human to progressively smaller scales of the natural world, from ordinary objects to...

      Cosmos

      What If Jupiter’s Moons Scattered Across the Solar System?

      What if Jupiter’s 79 moons weren’t gravitationally bound to Jupiter? What if they became rogue objects orbiting on their own paths around the Sun? Would they still be...

      Cosmos, MSN New

      What Life Would Really Be Like in a Cosmic Tower

      Wouldn’t it be great to have a truly jaw-dropping view? Like windows looking directly into space? Well, it’s time to build your very own cosmic skyscraper. What would it...

      Time Square submerged
      Earth

      This is What Our Cities Look Like in a World Without Ice

      What if climate change was taken to the absolute extreme and the entire planet’s ice melted?

      MSN New, Humanity

      U.S. Navy vs. U.S. Air Force: Who Would Win in a Showdown?

      Serving and protecting the United States is a big responsibility. But its seven services have things covered, even outer space. Tonight it’s sea versus sky as we...

      Earth

      What If You Fell Into a Pool Filled Snake Venom?

      Did you know that a single snake bite can kill an adult elephant in just a few hours? And if you’re not careful, snake venomc can kill you in only 15 minutes. But...

      Earth

      What If You Could Freeze a Hurricane?

      Has the weather ever ruined your plans? What if I told you I had an idea to stop hurricanes from wrecking your day? And that it involves liquid nitrogen. How exactly...

      Earth, MSN New

      What If the Oceans Vanished in a Global Boil?

      It’s about to get really hot down on Earth. Because all our oceans suddenly started to boil, sending steam into the atmosphere at an alarming rate. Why would all...

      Earth, MSN New

      Imagine the Woolly Rhino Never Went Extinct

      What if you walked into your favorite fast food place, and instead of chicken and beef burgers, they only had Woolly Rhinoceros on the menu? Well, it might not sound...

      Cosmos

      Scientists Discovered a Monstrous Black Hole Too Close to Earth

      Black holes are dark, matter-devouring balls of gravity. Most of them are so far away that we don’t need to worry about them. But not this one. Meet Gaia BH1. This...

      Technology

      What If We Had Nuclear-Powered Rockets?

      By the year 2035, NASA plans to send humans to Mars. But it would be about a nine-month trip with our current rocket technology. However, in the not-so-distant future...

      Earth, Humanity, MSN New

      How Would You Die During Every Mass Extinction?

      Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments. Starting with the very first extinction...

      Earth, Science

      What If the World Lost Oxygen for Five Seconds?

      Our lungs might be fine in that short a time frame, but the rest of the planet? Not so much.

      Cosmos

      What If You Fell Into Jupiter’s Red Spot?

      One minute, you’re setting up a new space station orbiting Jupiter. The next, you’re plunging right into the middle of a giant, red cyclone of death. What...

      Humanity

      Why 99% of Humanity Is Lost to Time

      As the nukes dropped on every major city around the globe, everyone sought shelter, but there was nowhere to hide. In an instant, civilization as we knew it was...

      Cosmos

      What If There Were an Alien Civilization on Proxima b?

      Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest exoplanets, Proxima Centauri b. What conditions...

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      Popular What Ifs

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      Earth

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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 Built a Tipler Cylinder?

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