A JPL facility built to support potential robotic spacecraft missions to frozen ocean worlds helps engineers develop safety ...

Spacesuit parts are being tested in a cryogenic ice chamber to see how well they would fare in the lunar south pole.

According to the researchers, since helium is an ultralight gas (having a density of 0.166 kg/m 3 or 4 g/mol), it can expand ...

Hydrogen and helium separate at pressures and temperatures found within the gas giant Jupiter’s marbled exterior is pretty familiar territory, but it’s still not clear what happens far below ...