One of the best ways to assemble the puzzle pieces of Earth’s past is hiding deep beneath its white polar sheets: ice cores ... to space or assist in constructing a space station Blue Origin ...

NASA astronaut Don Pettit shares a photo of Comet ATLAS that he took from a window of the International Space Station. Credit: Don Pettit / NASA Comets are enormous balls of ice, dust, and rock ...

The ice sculpture festival is a major tourist draw for the former industrial center that still boasts of its proximity to Russia with Tsarist-era architecture found nowhere else in China.