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The long hunt for new objects in our expanding solar system

Kevin Orrman-Rossiter, University of Melbourne and Alice Gorman, Flinders University Recognise these planet names: Vulcan, Neptune, Pluto, Nemesis, Tyche and Planet X? They all have one thing in common: their existence was predicted to account for unexplained phenomena in our solar system. While the predictions of Neptune and Pluto proved correct, Nemesis and Tyche probably […]

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Postcard from Spitzer: weather on 2MASSJ22282889-431026 is hot and cloudy

Long distance weather reports are now a commonality. The report for 2MASSJ22282889-431026 is somewhat unusual. It forecasts wind-driven, planet-sized clouds, with the light varying in time, brightening and dimming about every 90 minutes. The clouds on 2MASSJ22282889-431026 are composed of hot grains of sand, liquid drops of iron, and other exotic compounds. Definitely not the first […]

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