A team of astronomers using the W. M. Keck Observatory in Hawaii has discovered that aurorae at visible lengths appear on all four of Jupiter’s major moons, namely Io, Europa, Ganymede, and Callisto. The discovery was made using the High-Resolution Echelle Spectrometer (HIRES) at the Keck Observatory, as well as other high-resolution spectrographs at the Large Binocular Telescope and Apache Point Observatory.
A large volcanic outburst was discovered on Jupiter’s moon Io in the fall of 2022.
Observations made using Keck and Gemini observatories, Hawaii, revealed three massive volcanic eruptions on Jupiter's moon Io within a two-week period in August 2013, leading astronomers to speculate that these presumed rare "outbursts" migh
Jupiter’s moon Io is the most volcanically active world in the Solar System. It has hundreds of volcanoes and volcanic activity 25 times that of Earth. However, according to NASA and European Space Agency researchers, the concentrations of volcanic activity are
Jupiter will take center stage in the sky this month as it nears opposition to the sun. At opposition, expected on Oct. 29, Jupiter shines opposite the sun in our sky. Jupiter will rise in the eastern sky at sunset, stay out all night long and set in the west at