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      Earth

      7 Alarming Things That Would Happen If the World Lost Oxygen for 5 Seconds

      July 12, 2025
      Cosmos, Earth, Humanity

      48 Hours After Alien Contact

      12 months ago
      Earth, MSN New

      8 Minutes Without Oxygen?

      10 months ago
      Cosmos

      What If We Discovered Alien AI?

      April 2, 2020
      Science

      What If We Geo-Engineered Earth?

      January 23, 2019
      HTS MSN

      Why You Wouldn’t Survive El Chapo’s Prison Cell

      Imagine spending years without seeing the sky or hearing another human voice. Your world is reduced to four concrete walls, a steel door, and silence so intense it...

      HTS MSN

      “Just a photo” – Why This 30-centimeter Path Costs People Their Lives

      Thirty centimeters. That is the width of the walkway in some places. Not a path. Not a ledge. A row of wooden boards bolted to the face of a vertical cliff, with nothing...

      MSN New

      The Real Danger of Artificial Intelligence Is Not What You Think

      When people imagine artificial intelligence taking over, they usually picture something straight out of a science fiction movie. Giant robots patrol the streets...

      MSN New

      Why Human-Alien Hybrids Could Never Actually Exist

      It’s a beautiful night. Just you, a bottle of wine and your partner drifting through the cosmos in a UFO. As your caress their green skin, you know that...

      MSN New, Earth

      What Scientists Discovered Hidden Inside Whale Earwax

      Deep inside the ocean, whales carry a hidden record of their entire lives. But this information is not stored in their bones or DNA. It is hidden inside something most...

      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...

      HTS MSN

      Surviving One of North America’s Only Venomous Lizards

      It’s got you! Now the powerful jaws of this lizard have clamped down on your flesh and they won’t let go. You try to pull away, but these little monsters can...

      Cosmos

      What If You Built a Tipler Cylinder?

      Are you ready for the trip of a lifetime? Because this not so little machine is about to take you on one. A trip back in time. What would you need for this time travel...

      MSN New, Earth

      Historians Discovered Why So Many Egyptian Statues Are Missing Their Noses

      For thousands of years, the statues of ancient Egypt have fascinated people around the world. Their lifelike faces, towering size, and remarkable craftsmanship have...

      Cosmos, MSN New

      Imagine If You Spent 100 Years on Mars?

      It’s been 100 Earth years since you settled on Mars. You’ve been through pain, loneliness and a lot of hard work. And now Mars is the new promised land everyone...

      Humanity, MSN New

      What Would Change If Elon Musk Became President

      What if, instead of Trump or Biden becoming the next U.S. President, there was a third-party candidate? And that candidate was Elon Musk? What if Elon Musk became the...

      Earth, MSN New

      What Happens If Earth Loses the Moon?

      Would we all need night vision goggles? How would it affect the ocean tides? Our seasons? Or our sleep cycles? Or would the consequences be far more drastic? As the...

      HTS MSN

      How to Survive Falling Into a Black Hole

      So you happen to be traveling in space, exploring the Universe. Then you start to see planets and stars disappear. Outer space begins to get darker and darker. You look...

      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...

      MSN New, Earth

      Could Earth Survive Spinning at the Speed of Light?

      Earth never stops moving. Right now, as you read this, the planet beneath your feet is spinning at incredible speed. At the equator, you are traveling through space at...

      Humanity

      What If You Lived During 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? Hear ye, hear ye...

      HTS MSN

      Why the Cassowary Is Called the World’s Deadliest Bird

      If you ever find yourself deep in a rainforest and hear something heavy moving through the trees, you might want to stop and listen carefully. Because what is...

      HTS MSN

      Find Out How to Survive the First 24 Hours in Prison

      As you walk up to the correctional facility, you remember reading an article that said, “Chances are, you will remember your first day in prison for the rest of your...

      MSN New

      What If Aliens Actually Brought Life to Earth?

      Where did life on Earth come from? It is one of humanity’s oldest and most fascinating questions. For centuries, people have searched for answers in religion...

      MSN New

      What Could Your Daily Life Look Like 50 Years From Today?

      The world you know today would probably feel ancient to someone living 50 years from now. Think about how much life has changed over the past few decades. Smartphones...

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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

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