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      Earth

      What If Dinosaurs Evolved to Survive the Asteroid

      August 5, 2025
      Body

      What If You Were Eaten by Bacteria?

      September 25, 2020
      Humanity

      What If Covid-19 Was Made in a Lab?

      September 3, 2020
      Humanity

      What If Humans Suddenly Became as Big As Dinosaurs?

      September 11, 2025
      Cosmos

      What If You Lived on Kepler 22-b?

      June 28, 2022
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      MSN New, Earth

      Ready to Deploy and Capable of Devastation: These Are the Deadliest Weapons in the World

      Today, we’re going to explore the five deadliest weapons that are ready to be deployed right now. And, if you thought the deadliest belonged to the U.S. Army...

      MSN New, Earth

      The Day Earth’s Heart Stops Beating… Here Is What Follows

      Your planet has a heartbeat. You have never heard it, but you have depended on it every second of your life. It pulses thousands of kilometers beneath your feet: a...

      HTS MSN

      The True Reason Behind the Crocodile Hunter’s Death Revealed

      Steve Irwin, known worldwide as “The Crocodile Hunter,” spent his entire life working closely with some of the most dangerous animals on the planet. But on the morning...

      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

      We Drain a Giant Coral Atoll for More Living Space, and the Consequences Spread Worldwide

      Let’s face it. There are A LOT of us, and it’s getting more than a little crowded. Right now, there are over 7.7 billion people on Earth, and the United Nations predicts...

      MSN New

      How Long Could You Actually Last Alone in Antarctica?

      You’re cut off from civilization and stuck in one of the most unforgiving wastelands on Earth. Don’t count on a rescue anytime soon. You’re stranded in...

      MSN New

      How Different Would Life Be Without Thomas Edison?

      Few inventors in history have become as famous as Thomas Edison. With more than 1,000 patents attached to his name, Edison helped shape the modern world through...

      HTS MSN

      They Killed for Years Before Anyone Could Stop Them

      Throughout history, certain murderers have committed crimes so horrifying that their names became permanently associated with fear. They often appeared ordinary on the...

      MSN New, Earth

      One Hides From You, One Rears Up and Strikes Repeatedly, That Decides the Winner

      Corner a black widow and it runs. Corner a Sydney funnel web and it rises onto its back legs, exposes its fangs, and strikes again and again. That single difference in...

      Science

      What If We Lived In Cities Under Water?

      Let’s be honest, we are pushing our planet to a climate change catastrophe. But there could be a solution. 71% of the Earth’s surface is covered with water...

      MSN New, Humanity

      You Reached Space on a Jetpack, but There Was One Huge Problem

      Jetpacks have come a long way from the clunky machines once seen in science fiction. One day, they might even become practical enough for short trips. But imagine taking...

      MSN New, Earth, Humanity

      They Dropped Waste Straight Into the Moat, and Cholera Killed Them Within Hours

      Picture the castle from the outside. Stone walls, high towers, a moat circling the base. Now picture what is actually in that moat. The upper classes of the Middle Ages...

      HTS MSN

      What to Do If You’re Stranded Deep in the Forest

      Wandering off a hiking trail might start as an innocent way to explore nature, but now everything around you looks identical. The trees all blend together, the path has...

      MSN New, Health

      What Would Happen If You Spray Tanned Every Day for a Year?

      You’d love to have that healthy, sun-kissed tan all year round. But too much sun and you could get a nasty sunburn or even skin cancer. Spray tanning sounds like a way...

      HTS MSN

      30 Minutes to Death, The Bite You Can’t Ignore

      Imagine opening your door and coming face to face with one of the deadliest snakes on Earth. You have only seconds to react. A bite from a highly venomous snake can send...

      MSN New

      The Collapse of the Amazon Rainforest and What It Would Mean for Earth

      The Amazon rainforest is often described as one of the most important ecosystems on the planet, yet it is also one of the most threatened. Every year, large sections of...

      Cosmos, MSN, MSN New

      What If We Captured an Interstellar Object?

      An unexpected guest has made its way into our Solar System. It’s an interstellar object, an ISO. And it’s tumbling through space in a way that can’t be explained by...

      Cosmos

      What If Aliens Came to Earth a Million Years in the Future?

      Scientists have pieced together a pretty clear picture of what life was like on Earth thousands, even millions of years ago. If you fast-forward one million years from...

      Earth, MSN New

      What Would Happen If We Dumped Our Trash Into Volcanoes?

      A volcano is one of the most unforgiving natural phenomenons on Earth. If you were to fall into its magma-filled center, your body would quickly bubble up, and disappear...

      MSN New, Earth

      This Fish Lives 5,000 Meters Below the Surface, and It Looks Like a Monster

      Deep beneath the ocean’s surface lives a creature so strange that it looks more like an alien than a fish. With oversized fangs, a massive head, and a body adapted...

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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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