The Io–Jupiter system is similar, in scale, to an exoplanet orbiting an M-dwarf, and if volcanic Io doesn't have a magma ocean then perhaps exoplanets on close orbits around M-dwarfs don't either.

Io’s long-debated magma ocean may not exist. Juno spacecraft data reveals that tidal forces deform the moon differently than expected if a magma ocean were present. Instead, Io’s mantle appears mostly ...

Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised ...

Get Instant Summarized Text (Gist) Data from NASA's Juno spacecraft revealed unexpected variations in electron energies within the Alfvén wing connecting Jupiter and its moon Io. These electrons ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

JUPITER'S satellite Io has remarkable control of Jovian decametric radio emission (recently reviewed 1,2) and also a very high and possibly varying albedo 3,4.

Glimpses of a Volcanic World: New Telescope Images of Jupiter's Moon Io Rival Those from Spacecraft ... an extraordinarily low-density giant planet orbiting a distant Sun-like ...

Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...

"We report the discovery of GJ 2126 b, a highly eccentric (e = 0.85) Jupiter-like planet orbiting its host star every 272.7 days. The planet was detected and characterized using 112 RV ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar ... Union officially recognized 128 new moons orbiting Saturn, bringing the new total up to 274 moons.