High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the ...