Dramatic changes spotted in HD 189733b exoplanet atmosphere
Thursday, June 28, 2012 - 09:01
in Astronomy & Space
(Phys.org) -- Astronomers using the NASA/ESA Hubble Space Telescope have seen dramatic changes in the upper atmosphere of a faraway planet. Just after a violent flare on its parent star bathed it in intense X-ray radiation, the planet's atmosphere gave off a powerful burst of evaporation. The observations give a tantalizing glimpse of the changing climates and weather on planets outside our solar system.