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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 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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We can’t see it, but the universe appears to be full of this invisible mass.
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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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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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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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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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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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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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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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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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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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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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The Earth could be a second generation planet.
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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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The area where dark meets light on an exoplanet is called the terminator line.
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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 NASA probe endures intense radiation to learn Jupiter's secrets
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Mike explains how you can join the astronaut club.
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Lightning on Jupiter extracts carbon from methane, turning it into diamonds
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Mike talks about tourism - in space.
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Are Space Tourists Astronauts?
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When astronauts explore Mars, they'll need a way around communication delays of up to 22 minutes.
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Mike talks about his favorite memory from orbit.
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Astronaut Mike Massimino's Best Space Moment
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Mike talks about the importance of teamwork.
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What Does It Take to be a NASA Astronaut?
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