NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

The hellish surface of a moon of Jupiter known as Io is riddled ... Juno will use a more-distant flyby of Io on March 3 to look at the hot spot again and search for changes in the landscape.

Recently, the spacecraft has been making close flybys of the Jovian moon Io ... showing what it would look like to fly over this lava lake. Looking Into Io’s Loki Patera (Artist’s Concept ...

Io's intense volcanic activity is the result of "tidal flexing," where the moon is continuously being squeezed and released like a stress ball by Jupiter's crushing gravity. This external force ...

Or perhaps more likely, look at ... by Io, thanks to Jupiter itself and nearby moons Europa and Ganymede. It’s possible that the small moon may have once held water, like Europa or Ganymede ...

Here's the thing: That giant moon you see, as you look at the horizon, is the same size as when you see it in the sky. It's ...

To the naked eye, the moon should look like a bite is being taken out of the lunar disk. Totality occurs at 2:26 a.m. when the entire moon is under the umbra. This is when the reddish hues of the ...