Neptune
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Neptune's collection of moons has officially grown to 14. Originally discovered in 2013 and designated S/2004 N 1, this tiny world is described more accurately in a new paper, which also gives it an origin story and, finally, a catchier name. Say hello to Hippocamp.
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A type of world dubbed a "hot Neptune" has been conspicuously few and far between in terms of exoplanet discoveries, but a new observation may explain why. Hubble has now spotted a hot Neptune named GJ 3470b that’s vanishing at a record rate.
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An international team of astronomers has discovered that helium atoms are causing the atmosphere of a "warm-Neptune" exoplanet to expand like a party balloon before escaping into the cold expanse of space.
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Astronomers at the Paranal Observatory in Chile have achieved first light with a cutting-edge adaptive optics mode for the European Southern Observatory’s (ESO) Very Large Telescope (VLT), designed to remove interference caused by Earth’s atmosphere.
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Astronomers have observed an occultation of a distant star to get a better look at the little-known dwarf planet Haumea, which orbits the Sun beyond Neptune. Scientists were able to pin down the planet’s size, shape and density, and make a surprising new discovery: Haumea has a rocky ring around it.
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ScienceGemstones might not seem so valuable if they literally rained from the sky, but that's thought to be a common weather pattern on ice giant planets. Now scientists at the SLAC National Accelerator Laboratory have seen it in action here on Earth, by making it rain diamonds in the lab.
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NASA is formulating plans to return to the ice giant planets Uranus and Neptune. The agency has conducted a study to determine the scientific focus of these potential missions, the kinds of instruments needed and the logistics of how the spacecraft would get there.
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According to new research, the hypothetical Planet Nine could one day be responsible for the expulsion of a number of planets from our solar system, including Neptune, Jupiter and the dwarf planet Pluto.
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If you grew up knowing that there were nine planets orbiting our sun and were a bit crushed when Pluto lost its status, there might be new hope for a nine-pack, as researchers are again putting forth the idea that a planet might be lurking somewhere out there on the fringes of our Solar System.
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If Neptune seems a bit blemished of late, it's because NASA has confirmed that a dark spot has shown up in its bluish atmosphere and has been observed by the Hubble Space Telescope
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NASA has announced that its New Horizons probe has passed the orbit of Neptune – its last milestone before it flies by Pluto on July 14 next year. After this encounter, it will continue on out of the Solar System, during which it will study objects in the distant Kuiper belt.
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Data from the Hubble Space Telescope has led to the discovery of a tiny new moon orbiting the distant gas giant Neptune, the smallest and dimmest of its 14 moons.
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