Space's Deepest Secrets

Solar Twins Reveal the Future of the Sun

By studying similar stars, scientists believe they can predict what will happen to our Sun over time. One prediction is that the sun will get brighter as it ages.

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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.WWW
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02:52

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What is Dark Energy?
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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.WWW
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02:50

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Einstein's "Biggest Blunder"
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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.WWW
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Venus Might Have Been in the Habitable Zone
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Evidence shows that the Andromeda Galaxy is headed straight for our own. In the next few billion years, the two will collide. The Solar System will most likely be okay though.WWW
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02:41

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The Andromeda and Milky Way Galaxies Will Collide
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By studying similar stars, scientists believe they can predict what will happen to our Sun over time. One prediction is that the sun will get brighter as it ages.WWW
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02:39

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Solar Twins Reveal the Future of the Sun
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Is an ocean actually critical for life to survive? Does that ocean have to be made of water?WWW
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03:01

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Can Life Form Without Water?
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Photos from a zone on Mars called the Newton Crater are helping to shed light on the amount of water left on the planet. The moisture left is extremely salty, and possibly toxic to life forms.WWW
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Water on Mars is Incredibly Salty
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Methane is the primary ingredient in many of Saturn's moon's lakes and seas. Scientists designed a submarine that can withstand the volatile chemicals that will be found in these methane lakes.WWW
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02:58

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This Spacecraft Submarine Hybrid Will Explore Titan's Methane Lakes
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After Voyager 2 left Saturn, scientists noticed something wrong with the space probe's camera. To fix it from Earth, over a billion miles away, they had to come up with a creative solution.WWW
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Fixing a Space Probe Camera From a Billion Miles Away
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The Family Portrait is an image of the Solar System acquired by Voyager 1 on February 14, 1990 from a distance of approximately 6 billion kilometers from Earth.WWW
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Voyager 1 Took a Family Portrait of Our Solar System
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According to current quantum theory, particles can spontaneously appear from nowhere. Since matter and antimatter are opposites, they cancel each other out almost instantly when they come in contact..but how are they influenced by external magnetic fieldsWWW
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How Do Matter and Antimatter Interact?
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Ion thrusters create small thrust levels in comparison to conventional chemical rockets, but achieve high specific impulse. They could be practical in the vacuum of space.WWW
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This Thruster Can Propel a Spacecraft Almost Indefinitely
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Jupiter’s Great Red Spot – the largest and longest-running storm in our solar system – is shrinking. Juan Lora, a planetary scientist at UCLA, explains why.WWW
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This Is Why Jupiter’s Great Red Spot Is Shrinking
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Gravity from Jupiter and three neighboring moons twist Io's core, resulting in massive eruptions.WWW
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02:48

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Io is the Most Volcanic Planetary Body in the Solar System
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Instead of lava, freezing water is believed to burst from Wright Mons on Pluto.WWW
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The Ice Volcanoes of Pluto
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Volcanic activity on Io, one of Jupiter’s moons, could be the key to the planet’s extraordinary auroras. Here’s how scientists at Syracuse University in New York have recreated volcanic activity on Io.WWW
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How to Recreate Volcanic Activity on One of Jupiter’s Moons
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