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      Cosmos

      8 Reasons Why a Future World War Could Be Fought in Space

      July 18, 2025
      Science

      What If the Universe Ended Tomorrow?

      January 21, 2019
      Earth

      What If the Giganotosaurus Battled the Troodon?

      July 16, 2020
      Humanity

      What If Trump Didn’t Quit After Losing?

      November 2, 2020
      Body

      What If You Were Bitten by One Million Mosquitoes?

      July 23, 2021
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      HTS MSN

      Thousands Risk Their Lives at Japan’s Most Dangerous Festival

      Every six years, thousands of people gather in the Suwa region of Japan to watch men ride enormous logs down a mountainside. Not metaphorically. They climb on top of...

      HTS MSN

      A Sloth Bear Doesn’t Hunt Humans, So Why Does It Attack Them?

      You hear it crashing through the trees. There’s no way to escape it. The sloth bear is the most dangerous bear in the world. And it’s going to tear your face...

      MSN New, Earth

      What Trees Would Actually Tell Us if They Could Talk

      Trees have been standing silently beside us for thousands of years. They have witnessed changing climates, the rise and fall of civilizations, and countless generations...

      Science

      What If We Built A Ring World In Space?

      The Earth may not be our home forever. Eventually, we may have to leave. What if instead of finding a potentially habitable exoplanet light-years away, we stayed in our...

      HTS MSN

      The Deadliest Serial Killers Ever Known, and One May Still Be Free

      Throughout history, some criminals have committed crimes so shocking that their names became symbols of fear. From trusted doctors to seemingly friendly neighbors, these...

      Something Alien May Be Living at the Bottom of the Ocean
      MSN New, Earth

      Something Alien May Be Living at the Bottom of the Ocean

      When people imagine alien life, they usually look toward the stars. But there is another unexplored world much closer to home that may be hiding creatures just as...

      HTS MSN

      Termites Helped Start a House Fire, Causing $200,000 in Damage

      They will silently chew your house to the ground. By the time you notice anything, it will be too late. And you thought your inlaws were horrible house guests. These...

      MSN New, Earth

      The Days Would Last 580 Hours if the Moon Were Replaced

      Our Moon may seem ordinary, but it quietly keeps Earth stable. It controls the tides, slows our planet’s rotation, and helps maintain the rhythm of life. But what...

      MSN New, Earth

      All the Oxygen on Earth Could Disappear for One Hour, Here’s What Would Happen

      Take a slow, deep breath right now and notice how satisfying that simple act feels. What fills your lungs in that moment is oxygen, making up only about 21 percent of...

      MSN New, Cosmos

      What If Every Planet in the Solar System Could Support Life?

      Make room, earthling. We’re moving the other planets in our Solar System into our planetary neck of the woods. Would all the planets fit into this Goldilocks zone? What...

      HTS MSN

      A 6 Year Old Fell 5 m From a Roller Coaster While His Mom Watched in Horror

      May 30, 2019, was supposed to be a normal spring break day at Lightwater Valley theme park in Yorkshire, UK. A mother and her 6 year old son boarded one of the...

      MSN New, Cosmos

      If Another Universe Crashed Into Ours, Here’s How Long We’d Have

      What would occur if another universe suddenly collided with ours? Though this sounds like something out of science fiction, some scientists have thought about whether...

      MSN New, Earth

      The Oceans Just Started Turning to Acid, and Here’s What Dies First

      It can instantly cause severe burns on your skin. It can even dissolve things like limestone and concrete. This is battery acid. Now instead of this acid being inside...

      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...

      HTS MSN

      A Six-Year-Old Boy Had Headaches After a River Swim, and Doctors Found the Cause Inside His Nose

      Most leeches are small enough to fit on a fingertip, but some species can grow to astonishing sizes. In the rivers of South America, certain leeches have adapted to...

      Health, MSN New

      Here is What Happens If You Only Drink Coca-Cola

      Coca-Cola can do some pretty strange things. And the ingredients inside of it might be even more bizarre. Just imagine what it’s doing inside your body after you...

      MSN New, Humanity

      Humanity Is Building Its Greatest Technologies, but They Could Become Our Biggest Threat

      You know that feeling when you try to do a good thing and then accidentally scorch the entire planet? Yeah, the future can be terrifying. Lasers. Artificial intelligence...

      Cosmos

      What If We Started Mining Asteroids?

        Space is full of treasures. Literally. If we were able to extract the resources from the rocks in the asteroid belt alone, we could give $100 billion to every...

      Cosmos

      What If We Dug a Hole Through the Moon?

      Scroll down to watch our video. The Moon’s surface is made up of long-dead volcanoes and impact craters from asteroids. But have you ever wondered what might be...

      MSN New, Earth

      Could an Army of Intelligent Monkeys Really Defeat Humanity?

      The revolt has happened. Not through brute force either, which is the unsettling part. Primates found a way to outthink us. It’s their planet now. So the real...

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      Body, MSN

      8 Things That Would Happen If Only Drank Milk for the Rest of Your Life

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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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