Astronomers have twice found evidence of a plume of water vapor coming from the same location. Both plumes, photographed in UV light by Hubble, were seen in silhouette as the moon passed in front of Jupiter.
There are many worlds out there waiting to fire your imagination. This site is for everyone interested in the burgeoning field of exoplanet detection and research, from the general public to scientists in the field. It will present columns, news stories and in-depth features, as well as the work of guest writers.
The “Many Worlds” column is supported by the Lunar Planetary Institute/USRA and informed by NASA's NExSS initiative, a research coordination network dedicated to the study of planetary habitability. Any opinions expressed are the author’s alone.