Ice, ice, baby — too cold, too cold. A recent spacecraft flyby over Mercury has experts believing that the planet closest to the sun has “frozen water” on its surface — and they’re ...

Among the questions it will probe, according to ESA, is whether water ice really exists in the planet's craters and what Mercury's surface is actually made of. Stephanie Pappas is a contributing ...

water ice hiding in shadowed craters, and an off-center magnetic field in the planet. There’s still a lot about this curious world that scientists have yet to figure out. Why is Mercury so ...

These dark regions could contain water ice, and investigating ... exposure photograph of Mercury’s north pole, with the spacecraft about 787 kilometers from the planet’s surface.

A planet that may support alien life has been discovered less than 20 light-years from Earth. The "promising" super-Earth - ...