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      Cosmos, Earth

      6 Extreme Stars That Would Replace Our Sun and Destroy Life on Earth

      August 25, 2025
      Earth

      What If Megalodon Sharks Never Went Extinct?

      November 16, 2019
      Body

      What If You Jumped Into a Pool Full of Honey?

      January 27, 2021
      Cosmos

      What If Earth Had a Large Elliptical Orbit?

      November 8, 2018
      Earth, Humanity

      7 Things That Would Happen If We Became a Type VI Civilization

      July 22, 2025
      MSN New, Humanity

      What If All 7,000 Languages Became One? Here’s What We’d Lose

      In September 2019, the Merriam-Webster Dictionary added 530 new words to its collection, which now totals roughly 470,000 words. Needless to say, language, all languages...

      Earth, MSN, MSN New

      What If All the Satellites Orbiting Earth Suddenly Fell?

      Here’s what you’ll learn when you read this story: Discover how losing thousands of satellites could instantly shut down GPS, internet, banking systems, and...

      MSN New, Cosmos

      What If You Climbed the Highest Mountain in the Solar System?

      Climbing the world’s tallest mountains is a daring adventure. But you’re about to make an epic extraterrestrial trek on the biggest mountain in the entire Solar...

      Humanity

      What If You Knew What Would Happen in 100 Years?

      A century of history flashes before your eyes. Not the past, but the future. And now you know how life would unfold over the next 100 years. What changes would happen to...

      Cosmos

      What If You Traveled to a Black Hole?

      Black holes aren’t exactly a popular vacation destination. They feed on anything and everything that comes into their vicinity. They are dense, and unpredictably...

      HTS MSN

      The One Thing You Should Never Do in a Bank Robbery

      As you’re waiting in line to deposit your paycheck, you see a group of people entering the bank, demanding money and threatening to kill everybody if they...

      HTS MSN

      The Real Reason People Drown, and How to Stop It

      Drowning is often imagined as a dramatic struggle, with someone waving their arms and calling for help. But the reality is much different. Many drowning victims...

      MSN New, Earth

      Every Glacier on Earth Just Melted. Here’s Which Cities Drown

      Global sea levels have already risen by about 20 cm (8 inches) since the mid 1800s, although the increase has not been the same everywhere. While that may sound minor...

      Earth, Cosmos

      8 Facts About What Would Happen If We Poured All of Earths Water on the Sun

      Things are getting hotter and hotter here on Earth, and global warming has everyone panicking. But let us try a wild idea: what if we took every drop of Earth’s water...

      Earth, MSN New

      What If We Built a Road Around the World?

      Imagine an ultimate road trip across the globe. On a highway along the equator. Wait, there is no highway along the equator… yet. So how about we build one? What...

      HTS MSN

      The Most Cinematic Prison Escape in History

      On July 1, 2018, something happened outside Paris that sounded less like real life and more like a movie scene. Armed men hijacked a helicopter, flew it directly into a...

      HTS MSN

      The Deadliest Plague in History Had a Survival Playbook. Here’s What Worked

      The Black Death is a deadly plague that struck Europe and Asia in the 1300s. Eventually, it killed over 50 million people worldwide. Once its bacteria infects your body...

      MSN New, Cosmos

      Earth Will Become a Dead Rock, but the Universe Has Something Much Worse Ahead

      Earth feels permanent only because human lives are so short. On the scale of the cosmos, however, our planet is passing through a brief moment in an existence that...

      MSN New, Cosmos

      A Once Warm World Slowly Turned Into the Red Desert We Know Today

      THE BEGINNING – 4.5 BILLION YEARS AGO On Mars, this stage is called the Pre Noachian era. Mars had just formed from dust and gas inside the early solar disk, the...

      Humanity

      What Humans Might Look Like If Evolution Sent Us Back Underwater

      Humans are built for life on land, but what if evolution had taken a different path and sent us back into the ocean? To imagine this, we need to look at some of the...

      MSN New, Earth

      Scientists Have a Risky Plan to Wake Up Volcanoes to Cool the Planet

      Several volcanoes around the world are being woken up on purpose. The mission? To use volcanic eruptions to protect the Earth from global warming. In what ways could you...

      Cosmos, MSN New

      The Entire Evolution of our Sun

      In a few billion years, our Sun will become so violently hot that it could wipe out all life in the Milky Way. Yet, paradoxically, the same star that could destroy life...

      MSN New

      What Would Happen If Putin Ordered a Nuclear Attack?

      Since Russia’s invasion of Ukraine, one question has lingered in the minds of millions around the world. What would happen if Russian President Vladimir Putin...

      HTS MSN

      What to Do if a Rabid Coyote Comes Straight at You

      You’re out for an early morning nature hike, when a sharp, ungodly howl rattles your insides. It sounds like a monster. Before you can say a word, you’re smack in...

      MSN New

      The Surprising Truth About What Would Happen If a Nuclear Bomb Exploded on the Moon

      The Moon has inspired myths, guided sailors, and lit up our nights for thousands of years. But during one of the most intense periods of the Cold War, people considered...

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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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