Recently in the Moons and Icy Worlds Category

Geophysical measurements can reveal the structure of icy ocean worlds and cycling of volatiles. The associated density, temperature, sound speed, and electrical conductivity of such worlds thus characterizes their habitability.

To date, seismological efforts have been limited to terrestrial objects: Earth, the Moon, and soon Mars. All have in common a rigid lithosphere above a solid mantle. The coming years may see the development of seismological experiments for Europa, Titan and Enceladus, so it is necessary to adapt seismological concepts to the setting of worlds with global oceans covered in ice.

A liquid ocean lying deep beneath Pluto's frozen surface is the best explanation for features revealed by NASA's New Horizons spacecraft, according to a new analysis.

As NASA missions explore our solar system and search for new worlds, they are finding water in surprising places. Water is but one piece of our search for habitable planets and life beyond Earth, yet it links many seemingly unrelated worlds in surprising ways.

NASA's Cassini spacecraft has provided scientists the first clear evidence that Saturn's moon Enceladus exhibits signs of present-day hydrothermal activity which may resemble that seen in the deep oceans on Earth.

NASA will host a teleconference at 11 a.m. EDT on Thursday, March 12, to discuss Hubble Space Telescope's observations of Ganymede, Jupiter's largest moon. These results will help scientists in the search for habitable worlds beyond Earth.

The pH of Enceladus' Ocean

Observational data from the Cassini spacecraft are used to obtain a chemical model of ocean water on Enceladus.

Enceladus, a small icy moon of Saturn, is one of the most remarkable bodies in the solar system.

The Importance of Plumes

The Hubble Space Telescope is famous for finding black holes. It can pick out thousands of galaxies in a patch of sky the size of a thumbprint. The most powerful space telescope ever built, the Hubble provided evidence that the Universe is slowing down in its infinite rush into whatever lies beyond.

NASA's Cassini spacecraft and Deep Space Network have uncovered evidence Saturn's moon Enceladus harbors a large underground ocean of liquid water, furthering scientific interest in the moon as a potential home to extraterrestrial microbes.