If there is a subsurface sea on Pluto, why hasn't it frozen solid? According to computer simulations devised by researchers from Japan's Hokkaido University and elsewhere, it may be that the ...

ESA’s (European Space Agency) Mars Express has found layers of water ice stretching several kilometers below ground – the most water ever found in this part of the planet. f melted, the ice locked up ...

For the first time in the history of planetary exploration, the MARSIS radar on board ESA’s Mars Express has provided direct information about the deep subsurface of Mars. First data include buried ...

Perspective view of Lucus Planum part of the Medusae Fossae Formation, a series of thick deposits found along the highland-lowland dichotomy boundary on Mars. The deposit shown here in this false ...

Scientists have discovered an unusually thick and mysterious layer of rock deep beneath the ocean floor under Bermuda, a ...