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      Cosmos

      What If Moon landing never happened?

      May 26, 2021
      Earth

      What If the Argentinosaurus Was Alive Today?

      August 10, 2022
      MSN New, Earth

      Find Out What Would Happen If All Antarctica’s Ice Suddenly Melted

      5 months ago
      Cosmos

      What If Humanity Became Type 7 Civilization?

      October 26, 2023
      Humanity

      What If Civilization Collapses?

      April 26, 2021
      MSN New, Cosmos

      Left in Space: 12 of the Strangest Things Humans Left in Space

      During the Apollo missions in the 1960s, astronauts collected lunar rocks to bring back to Earth, but to lighten their cargo, they left 96 bags of urine and feces on the...

      HTS MSN

      America’s Deadliest Hurricanes Compared by Size

      Hurricanes are among the most powerful storms on Earth, capable of producing enormous winds, flooding, and storm surges. But how do some of the strongest hurricanes in U...

      HTS MSN

      He Spent Most of His 1,100 Days in Solitary Confinement, He Was Only 16

      In 2010, a 16 year old boy named Kalief Browder was arrested in New York City after being accused of stealing a backpack. What followed would become a devastating story...

      MSN New, Cosmos

      The Sun Became Smaller Than Earth, and Everything Changed

      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 size of a...

      MSN New

      NASA’s Perseverance Rover Found Complex Carbon Molecules in a Dried-up Martian River

      NASA’s Perseverance rover has found complex carbon based molecules in ancient dried up river deposits on Mars, adding to growing evidence that the planet once had the...

      MSN New, Earth

      5 of the Most Dangerous Hikes in the World

      Mount Hua, China This hike leads to the South Peak of Huashan, one of the Five Great Mountains of China. Its summit stands at about 2,155 m (7,100 ft), and the infamous...

      MSN New, Earth

      A Giant Artificial Moon Could Make Earth’s Nights Bright Again

      Humanity is already filling the space around our planet with machines. Around Earth, thousands of satellites are currently circling above us, each one serving a...

      MSN New

      Could Hantavirus Lead to Another Pandemic?

      Three passengers died — including a Dutch couple — and others fell ill on the MV Hondius sailing from Argentina toward Cape Verde. One case is lab-confirmed as...

      MSN New, Earth

      The Frozen Continent Could Turn Into a Rainforest, and Earth Would Never Be the Same

      About 90 million years ago, Antarctica was not the frozen desert we know today. It was a warm, swampy world filled with dense forests, where ancient plants thrived under...

      MSN New, Earth

      Its Eyes Glow in the Dark 2,600 Meters Down, and It Is Not Even a Real Shark

      Two thousand six hundred meters below the surface, where sunlight has not reached for millions of years, something is looking back at you. Pale. Translucent. Drifting...

      Humanity

      6 Ways Humanity Would Struggle to Survive with Only Two People Left

      Imagine a future where the unthinkable happens. A global catastrophe wipes out nearly everyone on Earth, leaving only two human beings alive. With the survival of the...

      Cosmos

      What If We Replaced the Moon with Jupiter Overnight?

      Do you love Jupiter? Do you love it so much that you could look at it every day? I hope so. Because it just took the Moon’s place, and Earth will never be the same...

      MSN New, Earth

      A Modern Mosasaurus Could Hit 30 mph in a Second and Swallow You Whole, and Sharks Would Look Tame

      Zero to 48 km/h in a single second. Not over a hundred meters, not with a running start. One second, from a standstill, in water. That is the ambush strike of a...

      MSN New, Humanity

      What the World Would Be Like if Human Skin Were See-Through

      Objects seemingly move by themselves, reflections are missing when you pass by mirrors. But don’t worry, this isn’t a horror story. It’s just the future. And...

      MSN New, Humanity

      Why China Would Never Actually Invade Russia, Even If It Could

      Keep your friends close and your rivals even closer. China and Russia have one of the most complicated relationships in the world. They share a massive border, cooperate...

      MSN New, Earth

      Scientists Say Ancient Life on Earth May Have Already Escaped Into Space

      In 7.5 billion years, the Sun will expand and engulf our planet, destroying all life as we know it. Of course, a mass extinction on Earth could happen much sooner than...

      Science

      What If Bacteria Became Antibiotic Resistant?

        If you’re watching this right now, you’ve probably used antibiotics at some point in your life. But did you really need to? The Centers for Disease...

      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, Cosmos

      22,000 Pounds of Rock Falling Every Second, That Is What Living Under Martian Rings Means

      Picture standing on Mars and looking up at a ring stretching across the sky. Beautiful, until you understand what those rings eventually do. Every piece of that debris...

      Science

      What If Extinct Animals Could Be Brought Back to Life?

      What do saber-toothed tigers, woolly mammoths and the dodo all have in common? They’re all extinct, and some theorize humans played a large part in this. What if...

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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

      A 6.5 km Wide Space Cylinder Could Become Humanity’s New Home

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