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The discovery of a distant solar system with its planets in a seemingly impossible order has been revealed this week.
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Astronomers have detected an enigmatic free floating planet approximately 10,000 light-years from Earth.
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Dark matter accumulating in the cores of particular large planets could help us to finally confirm its existence.
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A passing star could disrupt the orbits of the planets and cause the Earth to be flung off into deep space.
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The previously unseen world is believed to orbit far out at a range of 838 times Earth's distance from the Sun.
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A type of rare, though extremely energetic and deadly cosmic event is able to wipe out whole planets.
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Scientists have come up with a way to find planets capable of supporting dinosaur-like extraterrestrial creatures.
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Jupiter is pretty big, but there are other, much larger planets to be found lurking in the depths of the cosmos.
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A new study has suggested that extraterrestrials could hitch a ride across the cosmos on rogue extrasolar worlds.
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A theoretical new type of telescope could make it possible to obtain close-up views of extrasolar worlds.
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Over the last 30 years, scientists have succeeded in identifying a staggering 5,000 planets in distant solar systems.
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Evidence of a planet has been found in a distant galaxy 28 million light years away.
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Scientists searching for life-bearing exoplanets have identified a new class of potentially habitable world.
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A new NASA study has revealed just how many potentially habitable worlds there are in our galaxy.
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Other stars may be able to host more than our own solar system's solitary habitable world, a new study suggests.
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Planets with two suns like Luke Skywalker's homeworld may be as common as planets orbiting a solitary star.
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Scientists have announced the discovery of 139 new objects situated in the far reaches of our solar system.
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It turns out that planets could orbit a black hole in much the same way as our own planet orbits the Sun.
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Astrophysicists have discovered a way to detect the surviving cores of planets orbiting white dwarf stars.
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The new worlds are so much like our own that both are now on a list of the 19 planets most likely to support life.