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Published on Jun 28, 2012
Dr. J (aka Dr. Joe Liske) presents the latest discovery about HD 189733b, an exoplanet that has been repeatedly studied by Hubble.
Observations taken in 2011 using Hubble and the Swift satellite showed a flare from the planet's parent star scorching the upper atmosphere and driving it off into space.
This is the first time that clear change has been observed in an exoplanet's atmosphere. The observations give a tantalising glimpse of changing weather on planets outside our Solar System.
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 tantalising glimpse of the changing climates and weather on planets outside our Solar System.
Credit: ESA/Hubble Visual design and editing: Martin Kornmesser Web and technical support: Raquel Yumi Shida and Mathias André Written by: Oli Usher Animations: Luis Calçada, Martin Kornmesser Narration: Dr J (Joe Liske) Solar videos: NASA, ESA, Solar Dynamics Observatory, SOHO/EIT (ESA & NASA) Music: John Stanford from Deep Space Directed by: Oli Usher Executive producer: Lars Lindberg Christensen