Space is bejeweled with the stunning IC 418, a planetary nebula with purple and orange coloring enveloping a bright white core. The nebula lies close to 2,000 light-years from Earth on the way to the ...

There's a new kind of ice. It forms at speeds of more than 1,000 mph (1,600 km/h), it lies deep beneath our feet, it could destroy hopes for alien life, and — finally — scientists understand how it ...