#20 interstellar
Stellar flare hits HD 189733b (artist's impression)
![54ad3f5004d99c5f701d2aa0_heic1209a_preview.jpg](../images/heic1209a_preview.jpg)
This artist’s impression shows exoplanet HD 189733b, as it passes in front of its parent star, called HD 189733A. Hubble’s instruments observed the system in 2010, and in 2011 following a large flare from the star (depicted in the image). Following the flare, Hubble observed the planet’s atmosphere evaporating at a rate of over 1000 tonnes per second.
In this picture, the surface of the star, which is around 80% the mass of the Sun, is based on observations of the Sun from the Solar Dynamics Observatory.
Credit: NASA, ESA, L. Calçada
In this picture, the surface of the star, which is around 80% the mass of the Sun, is based on observations of the Sun from the Solar Dynamics Observatory.
Credit: NASA, ESA, L. Calçada