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      What If Show
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      Body

      What If You Evolved 1,000 Years in a Day?

      January 10, 2022
      Cosmos, Earth

      What If Earth and Moon Switched Sizes?

      September 8, 2025
      Cosmos

      Why Can’t You Walk On Saturn?

      March 17, 2023
      Body

      What If You Had Three Eyes?

      March 21, 2022
      Cosmos

      What If We Drilled Through Mars?

      June 27, 2021
      MSN New, Cosmos

      If Our Sun Became a Neutron Star, Earth Wouldn’t Stand a Chance

      Stars with a much larger mass than our Sun burn out after just a few million years; in a gigantic explosion known as a supernova. Moving at the speed of light, millions...

      MSN New, Cosmos, Earth

      8 Minutes Pass in Complete Silence, and Earth Faces an Unthinkable Change

      The Sun is the engine of life on Earth. It provides heat, light, and the energy that drives every ecosystem on the planet. Without it, our world would instantly become...

      HTS MSN

      The Science Behind Arachnophobia and How to Overcome It

      Imagine spending a quiet night in an old cabin deep in the woods. Everything feels peaceful until you notice something moving on the wall. Then another one appears...

      Cosmos

      What If a Quasi-Star Entered Our Solar System?

      This rogue star has been traveling the Universe. And now, it’s finally entering our Solar System. But this isn’t just any regular star. It’s known as a...

      HTS MSN

      A Sandstorm the Size of a City Is Coming. Here’s How to Survive

      The sky turns orange. A loud noise is coming from the distance and getting closer. You turn and see a wall of sand, rising meters (yards) above the ground, and you’re...

      HTS MSN

      She Walked Into the Freezer to Check the Inventory, and the Broken Door Became a Death Trap

      A walk in freezer is supposed to be a routine part of working in a restaurant. Employees enter, collect ingredients, check supplies, and walk back out. But when a safety...

      HTS MSN

      He Built a Clever Alarm So He’d Never Oversleep, Then One Christmas It Killed Him

      In the mid 1880s, a hardworking lamplighter in New York came up with an unusual solution to a problem that could have cost him his livelihood: oversleeping. Sam...

      Earth

      What If Ants Were the Size of Elephants?

      They can lift 5,000 times their body weight. They have armies in the thousands. And they outnumber us a million to one. But ants are tiny, right? Yeah, that’s not going...

      MSN New, Cosmos

      You Could Fit 763 Earths Inside Saturn, but the Numbers Get Even Wilder

      Swipe Down for Full Video Story! The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are these...

      Science

      What If the Energy Revolution Happened Overnight?

      What if everyone on the planet said "no" to their gas-powered cars right now? And not just cars - gas dryers, water heaters, gas stoves, lawn mowers... What if we...

      MSN New, Earth

      200 Million Years Ago, Earth Was Almost Unrecognizable, and Life Was Already Thriving

      Imagine landing on Earth two hundred million years in the past. Rather than feeling like time travel, it would feel like touching down on a completely foreign planet. No...

      MSN New, Humanity

      The Mysterious Radio Broadcasts That May Still Be Sending Secrets to Spies

      Most people think of radio as a source of music, news, sports, or talk shows. But hidden among ordinary broadcasts is a mystery that has fascinated listeners, amateur...

      HTS MSN

      He Crawled Inside the 536 Degree Oven to Clean It, and Someone Turned It On

      Alan Catterall arrived at work expecting another ordinary day at Pyranha Mouldings, a kayak manufacturing company in Cheshire, England. Instead, a routine cleaning task...

      MSN New, Earth

      95 Times More Massive Than Earth, Hanging Where the Moon Used to Be

      The Moon weighs about one eightieth of what Earth does. That is why it can hang there for billions of years, tugging gently at our oceans, doing nothing worse than...

      MSN New, Earth, Humanity

      1.4 Billion Believers Against One White House, and History Says the Church Wins

      On one side sits the most powerful political office on Earth. On the other stands a man who speaks for 1.4 billion people across 183 countries. Donald Trump called the...

      HTS MSN

      How to Make It Out Alive When a Hot Air Balloon Starts to Fall

      Hot air balloons have fascinated people for centuries. The first successful manned hot air balloon flight took place in France in 1783, when the Montgolfier brothers...

      Cosmos

      What If You Traveled Through a Black Hole?

      Dark, mysterious and consuming everything around them, black holes will rip apart anything that passes their event horizons. But could there be more? What would happen...

      HTS MSN

      5 Dangerous Mistakes People Make During a Snake Attack

      A snake bite can turn into a life threatening emergency within minutes. Every year, millions of people around the world are bitten by venomous snakes, and some cases...

      MSN New, Humanity

      One Prank Phone Call Turned Deadly, and It Keeps Happening

      It begins with a simple phone call. Someone reports a hostage situation, an active shooter, or a bomb threat at a specific address. Within minutes, police officers and...

      MSN New, Earth

      The Siberian Village Where Winter Can Kill You in Minutes

      Minus 71.2 degrees Celsius. That’s the record low in a village where roughly 500 people live year round. At that temperature, skin exposed to the air freezes...

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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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