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      What If Show
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      Humanity

      What If the U.S. Started World War III?

      December 2, 2021
      Earth

      What If We Built the World’s Highest Bridge?

      October 4, 2022
      Earth

      What If the Megalodon Shark Fought the Mosasaurus?

      June 18, 2020
      Science

      What If We Could Build a Replica of the Sun on Earth?

      October 2, 2018
      Cosmos

      What If You Met a Time Traveler?

      September 19, 2019
      Cosmos, MSN, MSN New

      Nuking Every Planet in the Solar System

      Humanity has built some incredibly destructive weapons. There are still roughly 12,000 nuclear warheads on Earth today, capable of causing catastrophic damage to human...

      Cosmos, Earth

      What If Earth and Moon Switched Sizes?

      Imagine for a moment that Earth suddenly shrank to the size of the Moon, while the Moon expanded to the size of Earth. How would life on our planet change? Could humans...

      Humanity, MSN New, Science

      What If Science Cloned Your Body?

      With all the work to do, people to see, traffic jams to get stuck in, we all sometimes wish we could be in two places at once. We’ve already cloned sheep, cows...

      Science

      What If Humanity Became an Interstellar Society?

      What if humanity grew to be so technologically advanced that we were able to leave our Solar System and spread across interstellar space? Would we hop from one exoplanet...

      MSN New

      Enormous Earthquakes Struck Venezuela

      A series of powerful earthquakes recently struck Venezuela, including two major tremors measuring around magnitude 7.2 and 7.5. The back to back quakes hit west of...

      Earth

      What If Carbon Disappeared for 5 Seconds?

      This is carbon. And of all chemical elements in the Universe, it’s one of the most plentiful. So what would happen if all of it suddenly disappeared for five...

      Earth

      What If a Gravitational Wave Hit Earth?

      1.3 billion years ago, two orbiting massive black holes, circling each other at 250 times a second, collided in a violent, universe-rippling explosion that sent waves of...

      MSN New, Earth

      Scientists Warn: Massive Earthquake Risk Grows for 5 Western US States

      New geological models and updated hazard assessments from the U.S. Geological Survey and leading universities are once again raising concern across the American West...

      Cosmos

      What If Octopuses Are Aliens from Outer Space?

      What if I told you we discovered an alien species with an adaptable body? Advanced intelligence? And astounding camouflage skills? Enter the octopus. Wait. What did you...

      MSN New

      Opening a Portal to Another Universe Could Change Everything

      The idea that our Universe might not be alone is one of the most fascinating possibilities in modern physics. What if reality is not singular, but instead just one layer...

      Science

      What Happens If You Wake up During Surgery?

      At first, it’s very bright. But then, as your eyes adjust to the light, you start to piece together your surroundings. The moving blobs above you, you realize, are...

      Cosmos, MSN New

      What Would Happen If We Could Open a Portal to a Parallel Universe?

      What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And what if we don’t have to look too far...

      Humanity, MSN New

      What Would Happen If Kim Jong-Un Suddenly Disappeared?

      In 2020, when Kim Jong-Un disappeared for three weeks, the world went into full speculation mode. Was he ill? Dead? On a secret mission to binge-watch K-dramas? South...

      MSN New

      Could Life on Mars Already Exist Beneath the Surface?

      Just north of Mars’ equator lies a 45 km (28 mi) wide impact crater known as Jezero Crater. Scientists believe this location may have once held an ancient lake, making...

      Cosmos

      What If All the Planets Doubled in Size?

      Some of the planets in our Solar System are gigantic. But what if they got even bigger? Let’s go up the planetary size chart and see what kind of chaos doubling the size...

      MSN New

      Scientists FINALLY Discovered a White Hole

      A black hole is often described as a cosmic point of no return, a region in space where gravity is so strong that nothing, not even light, can escape. Anything that...

      MSN New

      Could a Modern Alcatraz Really Work?

      Imagine being told that your new prison cell sits on an isolated island in the middle of San Francisco Bay. The water around you is cold, the currents are strong, and...

      Cosmos, Science

      What If The Sun Was Smaller Than The Earth?

        How big is the Sun compared to the Earth? Imagine you were able to shrink the Sun to the size of a basketball. At that point, the Earth would be reduced to the...

      MSN New, Earth

      Physicists Explain What Happens If a Needle Hits Earth at Light Speed

      Swipe Down for Full Video Story Imagine a tiny needle traveling toward Earth at the speed of light. At first glance, it might seem harmless, since it is so small...

      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...

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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.

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