Prokaryotic life has dominated most of the evolutionary history of our planet, evolving to
occupy virtually all available environmental niches. Extremophiles, especially those thriving …

Pressures in the hydrospheres of large ocean worlds extend to ranges exceeding those in
Earth deepest oceans. In this regime, dense water ices and other high-pressure phases …

Geophysical measurements can reveal the structures and thermal states of icy ocean
worlds. The interior density, temperature, sound speed, and electrical conductivity thus …

Precise radio tracking of the spacecraft Cassini has provided a determination of Titan's mass
and gravity harmonics to degree 3. The quadrupole field is consistent with a hydrostatically …

The large icy moons of Jupiter contain vast quantities of liquid water, a key ingredient for life.
Ganymede and Callisto are weaker candidates for habitability than Europa, in part because …

Water is necessary for the origin and survival of life as we know it. In the search for life-
friendly worlds, water-rich planets therefore are obvious candidates and have attracted …

The Cassini Titan Radar Mapper is providing an unprecedented view of Titan's surface
geology. Here we use Synthetic Aperture Radar (SAR) image swaths (Ta–T30) obtained …

We model the thermal evolution of Titan's core and search for solutions that are consistent
with the mean moment of inertia yielded by the Cassini‐Huygens Mission. Like previous …

The state of knowledge about the structure and composition of icy satellite interiors has been
significantly extended by combining direct measurements from spacecraft, laboratory …

Titan's moment of inertia (MoI), estimated from the quadrupole gravity field measured by the
Cassini spacecraft, is 0.342, which has been interpreted as evidence of a partially …