NASA flyby reveals lava lake, ‘Steeple Mountain’ on Jupiter’s moon Io | CNN Flybys of Jupiter’s moon Io, the only known volcanic world in our solar system, have captured images of a massive lava lake and a towering Matterhorn-like mountain.

👇🇺🇸 "Unprecedented images reveal jaw-dropping features of Jupiter’s ‘tortured moon’" #NASA #JunoProbe #JupiterMoonIO #Space #Astronomy