If watery plumes do burst from Europa’s surface, they might originate not in the moon’s underground ocean, but instead in pockets of brine trapped in the moon’s crust. If that’s so, it could be a source of frustration for those who want to probe Europa’s ocean for possible life. Source: https://earthsky.org/space/jupiter-moon-europa-plumes-salty-water-in-crust…
Tag: Galileo Spacecraft
How Jupiter’s moon Io gets its hellish atmosphere
Hot, active volcanoes produce almost half of Jupiter’s moon Io’s sulfur atmosphere, according to new observations using the ALMA telescope. The rest comes from cold sulfur deposits that freeze on the surface, then sublimate in sunlight. Source: https://earthsky.org/space/io-sulfur-volcanoes-hot-so2-cold-so2…
The true polar wander of Jupiter’s moon Europa
Cracks in Europa’s surface indicate the moon’s outer ice shell has shifted by as much as 70 degrees over the past several million years. It’s the kind of movement you’d expect from a planetary crust floating on a subsurface ocean. Source: https://earthsky.org/space/europa-ice-shell-70-degree-shift-true-polar-wander…
Huge ring-like structure on Ganymede’s surface may have been caused by violent impact
Researchers from Kobe University and the National Institute of Technology, Oshima College have conducted a detailed reanalysis of image data from Voyager 1, 2 and Galileo spacecraft in order to investigate the orientation and distribution of the ancient tectonic troughs found on Jupiter’s moon Ganymede. They discovered that these troughs are concentrically distributed across almost the entire surface of the satellite….
Huge ring-like structure on Ganymede’s surface may have been caused by violent impact (Update)
Researchers from Kobe University and the National Institute of Technology, Oshima College have conducted a detailed reanalysis of image data from Voyager 1, 2 and Galileo spacecraft in order to investigate the orientation and distribution of the ancient tectonic troughs found on Jupiter’s moon Ganymede. They discovered that these troughs are concentrically distributed across almost the entire surface of the satellite….
Juno’s new images reveal Ganymede’s north pole
These are the first spacecraft images yet acquired of the north pole of Ganymede, largest moon of the giant planet Jupiter. NASA’s Juno spacecraft – now orbiting Jupiter – obtained them. Source: https://earthsky.org/space/ganymede-north-pole-infrared-images-juno-spacecraft-jupiter…
Here’s how to see Jupiter’s four largest moons
Jupiter is now at its best time of the year for viewing, so turn your binoculars or telescope on the giant planet for a glimpse of its 4 largest Galilean moons. Source: https://earthsky.org/astronomy-essentials/how-to-see-jupiters-moons…
More evidence for watery plumes on Europa
Scientists in Europe have found more yet evidence for water vapor plumes on Jupiter’s ocean moon Europa. Source: https://earthsky.org/space/europa-water-vapor-plumes-galileo…
4 amazing astronomical discoveries from ancient Greece
The ancients made some jaw-dropping discoveries without modern technology. For example, the size of the moon. Source: https://earthsky.org/space/4-amazing-astronomical-discoveries-ancient-greece…
Our home world from afar
Celebrate Earth Day with these 10 images of Earth from space. Source: https://earthsky.org/space/earth-images-from-space…