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Hubble confirms new dark spot on Neptune

23 June 2016 Astronomy Now

New images captured by the NASA/ESA Hubble Space Telescope (HST) confirm the presence of a dark vortex roughly 3,000 miles (4,800 kilometres) across in the atmosphere of Neptune. Though similar features were seen during the Voyager 2 flyby of Neptune in 1989 and by the HST in 1994, this vortex is the first one observed on Neptune in the 21st century.

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Hubble portrait captures changes in Jupiter’s Great Red Spot

13 October 2015 Astronomy Now

Scientists using the NASA/ESA Hubble Space Telescope have produced new maps of Jupiter that show the continuing changes in its famous Great Red Spot. The images also reveal a rare wave structure in the planet’s atmosphere that has not been seen for decades. This is the first in a series of annual portraits of the solar system’s outer planets which will help researchers study how they change over time.