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Astronomers discover two 'hot Jupiters' orbiting red-giant stars
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Astronomers discover two ‘hot Jupiters’ orbiting red-giant stars

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Link found between age of stars and frequency of hot Jupiters
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Link found between age of stars and frequency of hot Jupiters

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Webb discovers new feature in Jupiter's atmosphere
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Webb discovers new feature in Jupiter’s atmosphere

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NASA's Juno is getting ever closer to Jupiter's moon Io
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NASA’s Juno is getting ever closer to Jupiter’s moon Io

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Research team identifies giant swirling waves at the edge of Jupiter's magnetosphere
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Research team identifies giant swirling waves at the edge of Jupiter’s magnetosphere

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African penguins: Climate refugees from a distant past? A new study on the paleo-historical geographic range of the endangered African penguin since the last Ice Age paints a grave picture of a species in steep decline
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Giant swirling waves at edge of Jupiter’s magnetosphere: Waves produced by Kelvin-Helmholtz instabilities transfer energy in the solar system

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https://www.esa.int/ESA_Multimedia/Images/2017/07/Exploring_Jupiter t may still be some years away from launch, and over a decade before our Jupiter Icy Moons Explorer reaches the gas giant and its icy moons, but preparations are well under way. This new artist?s impression depicts the final spacecraft design, the construction of which is being overseen by Airbus Defence and Space. The spacecraft?s solar wings form a distinctive cross-shape totalling 97 sq m, the largest ever flown on an interplanetary mission. The size is essential to generate sufficient power ? around 850 W ? for the instruments and spacecraft so far from the Sun. The spacecraft is furnished with a laboratory of instruments that will investigate Jupiter?s turbulent atmosphere and vast magnetosphere, as well as study the planet-sized moons Ganymede, Europa and Callisto. All three moons are thought to have oceans of liquid water beneath their icy crusts and should provide key clues on the potential for such moons to harbour habitable environments. Juice?s cameras will capture exquisite details of the moon?s features, as well as identify the ices and minerals on their surfaces. Other instruments will sound the subsurface and interior of the moons to better understand the location and nature of their buried oceans. The tenuous atmosphere around the moons will also be explored. The spacecraft will also include booms such as a 10 m-long magnetometer mast (seen towards the bottom of Juice in the artist impression), a 16 m radar antenna (the long boom across the top), and antennas to measure electric and magnetic fields. Ganymede is the only moon in the Solar System to generate its own internal magnetic field, and Juice is well equipped to document its behaviour and explore its interaction with Jupiter?s own magnetosphere. Juice is scheduled for launch in 2022 on a seven-year journey to the Jovian system. Its tour will include a dedicated orbit phase of Jupiter, targeted flybys of Europa, Ganymede and Callisto, and finally nine months orbiting Ganymede ? the first time any moon beyond our own has been orbited by a spacecraft. In the artist?s impression, which is not to scale, Ganymede is shown in the foreground, Callisto to the far right, and Europa centre-right. Volcanically active moon Io is also shown, at left. The moons were imaged by NASA?s Galileo spacecraft; Jupiter is seen here with a vivid aurora, captured by the NASA/ESA Hubble Space Telescope. ESA/ATG medialab; Jupiter: NASA/ESA/J. Nichols (University of Leicester); Ganymede: NASA/JPL; Io: NASA/JPL/University of Arizona; Callisto and Europa: NASA/JPL/DLR
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How to spot Jupiter’s icy moons

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New era of exoplanet discovery begins with images of 'Jupiter's younger sibling'
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New era of exoplanet discovery begins with images of ‘Jupiter’s younger sibling’

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Jupiter's moon Europa may have had a slow evolution
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Jupiter’s moon Europa may have had a slow evolution

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African penguins: Climate refugees from a distant past? A new study on the paleo-historical geographic range of the endangered African penguin since the last Ice Age paints a grave picture of a species in steep decline
Science

Jupiter’s moon Europa may have had a slow evolution

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