/tags/astronomy-days Astronomy Days en-US Copyright Thu, 17 Jan 2019 17:43:04 GMT /show/the-state-of-things/2019-01-17/not-just-dead-rocks-planetary-moons-spew-lava-rain-methane On Jupiter’s moon Io, lava sweeps across the surface and shoots in a giant arc hundreds of miles into space. Saturn’s moon Titan, meanwhile, has lakes… Thu, 17 Jan 2019 17:43:04 GMT /show/the-state-of-things/2019-01-17/not-just-dead-rocks-planetary-moons-spew-lava-rain-methane Laura Pellicer, Frank Stasio /science-technology/2019-01-17/not-just-dead-rocks-planetary-moons-spew-lava-rain-methane On Jupiter’s moon Io, lava sweeps across the surface and shoots in a giant arc hundreds of miles into space. Saturn’s moon Titan, meanwhile, has lakes… Thu, 17 Jan 2019 17:43:04 GMT /science-technology/2019-01-17/not-just-dead-rocks-planetary-moons-spew-lava-rain-methane Laura Pellicer, Frank Stasio