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      Earth

      What If Sea Levels Suddenly Rose 500 Meters?

      March 18, 2022
      Cosmos

      The First 10,000 Days of Populating Venus

      August 4, 2025
      Earth

      What If You Went Surfing on a Tsunami?

      August 19, 2019
      Humanity

      What If Humans Evolved Backward?

      March 3, 2023
      Earth

      What If Dinosaurs Evolved to Survive the Asteroid

      August 5, 2025
      MSN New, Humanity

      The T-Rex Is Back and Hunting Again, and Here’s What Changed

      Tyrannosaurus Rex. King of the tyrant lizards. It’s 6 meters tall (20 feet), 12 meters (40 feet) long, and it weighs upward of seven tons. You can hide from it...

      MSN New, Humanity

      Why China Might Keep Its Distance From Ending the Iran War

      The world often looks to powerful nations to stop conflicts, negotiate peace, and restore stability. But when it comes to a major war involving Iran, China’s role may...

      Science

      What If The World Was A Single Country?

      When you look at the Earth from space, you don’t see the 241 countries and territories that we’ve divided ourselves into. You don’t see the boundaries...

      Cosmos, Science

      What If The Sun Was Smaller Than The Earth?

        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...

      MSN New, Earth

      All of Earth’s Wildlife Just Vanished, and Here’s How Fast We Fall

      While it might be nice to avoid any dangerous confrontations on your wilderness walks, life without wildlife would be pretty boring. If we didn’t have animals...

      MSN New, Earth

      Earth Would Face 460°C Heat and −220°C Cold If Its Orbit Changed This Drastically

      What if Earth’s orbit ventured as far from the Sun as Pluto, and got as close to it as Venus? Would the Sun burn the planet to a crisp at the closest encounter...

      Cosmos, MSN

      What If a Gamma-Ray Burst Hit a Black Hole?

      What would happen if you took the most energetic light source in the Universe and smashed it into a massive gravitational monster? Well, you might reverse the flow of...

      MSN New, Humanity

      We May Be About to Start Mining Asteroids for Trillions

      Hidden among the millions of rocks orbiting our Sun are resources worth unimaginable amounts of money. Some estimates suggest that the minerals locked inside asteroids...

      Cosmos, MSN, MSN New

      What If the Moon Became a Giant Farm?

      As Earth’s population multiplies each year, we’re quickly running out of resources to feed the planet. Before long, we’re going to need more space to...

      Cosmos

      6 Things That Would Happen If the Moon Had Its Own Moon

      The Moon has been Earth’s constant companion for billions of years, shaping tides, lighting the night, and inspiring countless stories. But what if our Moon had a...

      Cosmos, MSN New

      What If You Crashed on an Alien Planet?

      You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as...

      HTS MSN

      Could You Outrun a Volcanic Eruption?

      Your vacation in Hawaii has taken a dangerous turn. The Earth shakes. You think it might be an earthquake, but then you see the smoke, and the lava. You always wanted to...

      Cosmos, MSN New

      Did Scientists Found Alien Life on Enceladus?

      First of all, yes, it’s pronounced Enceladus , not enchiladas. Enceladus is Saturn’s sixth largest moon, but it would be better described as a winter...

      Cosmos

      What If We Lived In a Galactic Zoo?

      Do you ever feel like you’re being watched? Not by a creepy stalker, but by aliens. Yup, it might be happening. Just like we watch animals at the zoo, aliens may...

      MSN New, Earth

      What If The Earth Was Cube-Shaped?

      In November, 1884, the New York Times ran a pretty interesting story. An astronomer, known only by the name, “Arndt” claimed to have discovered a cubic...

      HTS MSN

      Mauled By His Tiger: The Siegfried & Roy Tragedy

      The sound was described by witnesses as loud and chaotic, a sudden eruption that cut through what was meant to be a carefully controlled stage performance. On October...

      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

      NASA Has Just Achieved Something That Could Completely Change Air Travel

      For the first time, its experimental X 59 aircraft has successfully broken the sound barrier. But unlike every supersonic jet that came before it, this aircraft is...

      HTS MSN

      The Fukushima 50: The Heroes Japan Tried to Forget

      In March 2011, Japan was shaken by one of the most powerful earthquakes ever recorded. A magnitude 9.0 quake ripped through the east coast, triggering a massive tsunami...

      Earth

      6 Things That Would Happen If an Asteroid Hit Earth in 2024

      It might sound like a scene from a science fiction movie, but the threat of an asteroid hitting Earth is more realistic than you might expect. One asteroid in...

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      Popular What Ifs

      Earth

      What If The Oceans Boiled Away?

      Cosmos, MSN New

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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

      What If the Solar System Orbited a Black Hole?

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