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How the Universe Works
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More from this Show
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You can thank dark matter! As the universe expanded, dark matter became a web that stretched across space. It pulled in normal matter to create galaxies.
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03:10
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How the Universe Works
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How Do Galaxies Form?
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Scientists have been searching for dark matter particles for years, yet we still have no idea what they look like. One theory suggests we can’t find it because there are many different dark matter particles.
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02:24
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How the Universe Works
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What REALLY is Dark Matter?
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We can’t see it, but the universe appears to be full of this invisible mass.
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02:44
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How the Universe Works
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Why Do We Keep Searching for Dark Matter?
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Space smells like gunpowder and steak.
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00:45
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How the Universe Works
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What Does Space Smell Like?
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Blueberries found on Mars prove that there has to be flowing water, iron, and wind that can strip away fossil sand dunes.
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02:45
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How the Universe Works
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Blueberries on Mars
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This impact would make the one that killed the dinosaurs look like a pebble. It may have been the size of Pluto.
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03:02
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How the Universe Works
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A Massive Impact Made Mars Less Round
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Scientists are split on where we should search for life. Sand dunes? Lava tubes?
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02:53
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How the Universe Works
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Where Should We Search For Life On Mars?
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Who doesn’t want to go to the red planet?
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01:48
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How the Universe Works
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10+ Reasons We Want to Go to Mars
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There is a giant area that is colder and emptier than it should be. How did it get there? We have to look back to the Big Bang.
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02:52
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How the Universe Works
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What Causes Voids in Space?
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It’s beautiful, but catastrophic. Even the smallest bits of matter travel at 400,000 miles per hour after the collision.
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02:55
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How the Universe Works
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The Birth of Planets Can Be Deadly
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There’s a level of danger out in space that’s beyond even our own imaginations. We asked our How the Universe Works experts to describe the most mind boggling way the universe could kill us.
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02:22
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How the Universe Works
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4 Ways the Universe Can Kill You
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A neutron star is one of the most dangerous objects in the universe. Neutron stars are the densest things besides black holes. A stone sized piece of this star would weigh 100 million metric tons.
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02:54
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How the Universe Works
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What Happens if You Go Near a Neutron Star?
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Take it from us, you don't want to smell like a comet.
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00:42
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How the Universe Works
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Comets Smell Like Rotten Eggs
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Think of it like a cosmic ray gun. The energy released from a gamma ray burst is equivalent to a hundred trillion nuclear weapons going off every second for a hundred billion years. They can reduce planets to vapor.
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02:52
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How the Universe Works
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Gamma Ray Bursts are the Most Deadly Things in the Universe
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Stars go out with a bang. It’s an incredible light show.
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01:58
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How the Universe Works
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What Happens When a Star Dies?
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We’re not joking. It’s actually a thing. These stars rise from the dead and take revenge on the vampire stars that sucked the life out of them.
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03:04
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How the Universe Works
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Exploding Zombie Stars
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Life is impossible on Venus, but can the brutal winds that sweep across the planet create the right conditions for life just above the surface?
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01:47
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How the Universe Works
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Brutal Punch
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The Planck telescope peers through space and time towards the beginning of everything to capture an image of our universe from more than 13 billion years ago, 380,000 years after the Big Bang.
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01:45
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How the Universe Works
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13 Billion Years Ago, This Was Our Universe
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Planet Nine sits on the dark, distant edge of our solar system. Until we see the planet with our own eyes, we won’t know much about it’s surface. One theory is that Planet 9 is rocky like Earth, but 10 times as massive.
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03:06
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How the Universe Works
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Planet 9 May be a Rocky Super-Earth
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Will gravity or expansion win? There are three endgames: the universe will continue expanding forever, gravity and expansion will find balance, or gravity wins and the universe begins to get smaller.
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02:19
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How the Universe Works
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Will the Universe Expand or Contract?
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The heaviest metals in the universe can’t be created by nuclear fusion alone. Dense neutrino stars collide to create a burst of energy cataclysmic enough to bind the proton heavy stars into the heaviest elements like gold and lead.
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03:49
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How the Universe Works
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Heavy Metal Cataclysm
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Jupiter's weather doesn't come from the sun; it comes from deep within the planet itself. Jupiter also spins faster than any other planet in our solar system.
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02:18
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How the Universe Works
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Why Jupiter Has A Giant Red Spot
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How can we peer back into the Big Bang? It may be as easy as turning on your television.
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02:35
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How the Universe Works
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1 Percent of TV Static Comes from Light of the Big Bang
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On December 7, 1995, NASA's Galileo spacecraft dropped a probe into Jupiter's atmosphere.
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01:47
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How the Universe Works
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Lessons From NASA's Galileo Probe
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As infant planets, Earth and Venus were twins but today they couldn’t be more different. Two events caused a radical divergence in their development.
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04:36
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How the Universe Works
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The Divergence
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New evidence suggests that there’s a ninth planet in our solar system. Sorry, Pluto, we’re not talking about you. The only thing is... we’ve yet to actually see this planet.
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02:09
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How the Universe Works
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Does Planet 9 Actually Exist?
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Everything we know and see started with the Big Bang but physics has yet to figure out exactly how it happened.
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02:52
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How the Universe Works
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What Physics Doesn't Know About the Big Bang
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There’s a level of danger out in space that’s beyond even our own imaginations. We asked our How the Universe Works experts to describe the most mind boggling way the universe could kill us.
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02:22
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How the Universe Works
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4 Ways the Universe Can Kill You
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Venus had water once, but it became desiccated with no protection from the sun. It’s a glimpse of Earth’s future as the sun keeps getting larger, eventually causing a cataclysmic greenhouse event.
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03:17
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How the Universe Works
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There Is An Expiration Date
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In 2005, NASA's Cassini spacecraft captured an astounding sight: geysers of icy water spewing from Enceladus, one of Saturn's moons.
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02:46
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How the Universe Works
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Is There Life on Saturn Moon Enceladus?
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The core of Saturn is a scalding 21,000 degrees, twice the temperature of the sun's surface.
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03:34
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How the Universe Works
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The Birth of Saturn
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The oort cloud comets are dinosaur bones of solar system formation. Contained in them are the ingredients that made up our planets.
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02:25
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How the Universe Works
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How Did the Oort Cloud Form?
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