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How the Universe Works
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How the Universe Works
What Does Space Smell Like?
Space smells like gunpowder and steak.
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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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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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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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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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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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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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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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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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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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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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Exploding Zombie Stars
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Exoplanets are smaller and dimmer than stars. It makes them incredibly difficult to spot.
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How Do Scientists Find Exoplanets?
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Some alien worlds orbiting red dwarf stars might resemble giant eyeballs. They could be some of the most beautiful places to live in the universe.
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Living Near a Red Dwarf Could be Gorgeous
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The Earth could be a second generation planet.
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How the Universe Works
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Why Are There Few Earth-Like Planets?
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It’s beautiful, but don’t get too close. The planet’s density exerts a gravitational pull over 15 times stronger than on Earth.
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This Planet is a Giant Diamond
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The area where dark meets light on an exoplanet is called the terminator line.
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The Terminator Line on a Planet
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Meet the artist who has created a machine that creates portraits using his own blood as ink. The result is some amazing art but even more interesting science.
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As if making origami cranes wasn’t impressive enough, see how one man makes them dance together. Tiny magnets control their synchronized movement.
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The solar system is more geologically active than you might think.
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5 Places Volcanoes Exist Beyond Earth
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Einstein's theory of general relativity was not always considered correct. It wasn't until Hubble made a grand discovery that the equation was fixed.... or was it? Some scientists believe the equation should actually go back to it's original form due to dark energy.
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Einstein's "Biggest Blunder"
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Jupiter’s red eye has been swirling for at least 350 years.
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Space's Deepest Secrets
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Jupiter Has the Longest Living Storm Ever Recorded
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Luckily the Cassini spacecraft was there to witness one of these storms.
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Saturn Has the Most Powerful Storms in the Solar System
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Dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe.
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What is Dark Energy?
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Before heading into the solar system and beyond, get the latest weather conditions.
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Your Planetary Weather Forecast
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Evidence suggests that the so called "habitable zone" changes as the Sun ages. Many years ago, Venus may have resembled Earth and been home to life.
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Venus Might Have Been in the Habitable Zone
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