NASA’s Juno shows 127-mile-long lava lake on Jupiter’s moon

NASA launched Juno, the solar-powered spacecraft back in 2011. It took about six years for Juno to cruise over to Jupiter. Juno looks like a propeller that’s been orbiting around our solar system’s biggest planet for about eight years now. It has captured some stunning images and collected groundbreaking data.

Now, Juno has cruised over to Io, the world’s most volcanically active spot in the solar system. That’s what scientists are actually studying. After all, Juno cost like a billion dollars to build.