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      What If Show
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      Earth

      What If a Gravitational Wave Hit Earth?

      May 8, 2020
      Earth

      What If the World Lost Oxygen for an Hour?

      December 6, 2021
      Earth

      What Was Earth Like in Cenozoic era?

      August 4, 2025
      Science

      What If We Could Remember Everything?

      January 17, 2019
      Humanity

      What If There Were No Military Anywhere?

      May 10, 2021
      Cosmos

      8 Reasons Why a Future World War Could Be Fought in Space

      With Earth’s geopolitical tensions on the rise, the possibility of a global conflict is becoming more than just a distant threat. But in the modern era, a future world...

      Earth

      What If an Ice Tsunami Hit the United States?

      Ahh, spring has sprung. Robins are chirping. Flowers are blooming. Yikes, it’s getting a little windy out. Wait a minute. Do you hear that? Is it just me or does it look...

      Cosmos

      What If Russia Crashed the International Space Station?

      Under the pressure of crushing economic sanctions, Russia’s straining to play its own intimidation game. This time, they are threatening to take the International...

      Science

      Could We Survive on Earth If It Was Spinning Twice as Fast?

      Some say life is a roller coaster. What if it was more like this? We don't notice the earth spinning now, so what would life be like if it spun a little faster? Would we...

      Science

      What If Our Sun Became a Neutron Star?

      [dx_custom_adunit mobile_id=”RTK_v1lP”] Stars with a much larger mass than our Sun burn out after just a few million years; in a gigantic explosion known as...

      MSN New, Humanity

      The Risk of Telling the Universe That Humanity Is Here

      For decades, science fiction has shown humanity’s first contact with aliens as a dangerous moment. Movies often portray extraterrestrial visitors as invaders...

      MSN New, Cosmos

      Venus vs Mars: Which Planet Should We Colonize?

      When people imagine humanity’s future beyond Earth, Mars is usually the first destination that comes to mind. It is close, familiar in some ways, and has been studied...

      Earth, MSN New

      What Would Happen IF You Fell Into Niagara Falls?

      They’re not the biggest falls on Earth, not by a long shot. But they’re certainly among the most famous. Niagara Falls attracts millions of visitors from...

      Earth

      What If Earth Was As Small as Pluto?

      It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how would it alter the atmosphere...

      MSN New, Cosmos

      What Happens If Jupiter and Saturn Collide?

      The two biggest planets in our Solar System in one telescope view. And catastrophe is imminent. If Jupiter and Saturn suddenly were on a collision course, which of the...

      MSN New, Humanity

      Have We Already Made Contact With Aliens?

      Since the 1960s, scientists working with SETI (Search for Extraterrestrial Intelligence) have been monitoring the universe for artificial radio signals. The idea is...

      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...

      Cosmos, MSN New

      What If Mars Is Already Home to Alien Life?

      Just north of the Martian equator lies a 45 km (28 mi) wide impact crater that scientists believe may have been the site of an ancient lake. Here at Jezero Crater...

      MSN New, Earth

      Lava Hits 1,200 Degrees and Nitrogen Sits at Minus 210, So You Would Need Cannonballs

      Lava reaches 1,200 degrees Celsius. Liquid nitrogen sits at minus 210. Put those two numbers side by side and the experiment writes itself. What happens if you dump one...

      Technology

      What If All Houses Were Covered With Solar Panels?

      Rise. and. shine! Get up and seize the day! You can do anything under the sun…when the sun powers everything. Your phone, your home, and all that’s in...

      HTS MSN

      7 Everyday Things That Could Get You Arrested in North Korea

      Welcome to one of the most restricted countries in the world. North Korea is often described by analysts and defectors as a tightly controlled state where everyday life...

      Cosmos

      What If an Asteroid Cracked the Moon in Half?

      A giant asteroid is headed our way. But no, it won’t hit the Earth. This asteroid is about to slam into the Moon and crack it right in half. What would it be like...

      MSN New, Cosmos

      If Earth Were the Center of the Solar System, the Sun Would Die and We’d Freeze Solid

      Put Earth at the center of the Solar System and something has to give. Gravity does not negotiate, so if everything is going to orbit us, the masses have to be...

      HTS MSN

      A Circus Tiger Suddenly Turned on Its Trainer in Front of His Mother

      At the circus in Madrid, Spain, things seemed to be proceeding as scheduled for 35-year-old animal trainer Denny Gottani. Since he had years of experience in working...

      HTS MSN

      10 cm Claws and “It’s Not Slow When It Attacks”

      At first glance, a sloth hardly looks like an animal you should be afraid of. It moves slowly, spends most of its life hanging from tree branches, and often appears to...

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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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