National Aeronautics and Space Administration Logo
Follow this link to skip to the main content
YSS Logo
YSS Logo
YSS Logo
NASA Banner
Return to Solar System Exploration
TOPICS
  Educational Resources Background Featured Missions Solar System Explorers
   Overview   News   Classrooms   Organizations & Clubs   Featured Activity 

Ice in the Solar System: Ice!
News


Date
Title
18 Sep 2013 Long-stressed Europa Likely Off-kilter at One Time
By analyzing the distinctive cracks lining the icy face of Europa, NASA scientists found evidence that this moon of Jupiter likely spun around a tilted axis at some point. Europa's tilt could influence calculations of how much of the moon's history is recorded in its frozen shell, how much heat is generated by tides in its ocean, and even how long the ocean has been liquid.
28 Aug 2013 Cassini Data: Saturn Moon May Have Rigid Ice Shell
An analysis of gravity and topography data from the Saturnian moon Titan obtained by NASA's Cassini spacecraft suggests there could be something unexpected about the moon's outer ice shell. The findings, published on Aug. 28 in the journal Nature, suggest that Titan's ice shell could be rigid, and that relatively small topographic features on the surface could be associated with large ice "roots" extending into the underlying ocean.
7 Aug 2013 If We Landed on Europa, What Would We Want to Know?
Most of what scientists know of Jupiter's moon Europa they have gleaned from a dozen or so close flybys from NASA's Voyager 2 spacecraft in 1979 and NASA's Galileo spacecraft in the mid-to-late 1990s. Even in these fleeting, paparazzi-like encounters, scientists have seen a fractured, ice-covered world with tantalizing signs of a liquid water ocean under its surface. Such an environment could potentially be a hospitable home for microbial life. But what if we got to land on Europa's surface and conduct something along the lines of a more in-depth interview? What would scientists ask?
19 Jun 2013 Metamorphosis of Moon's Water Ice Explained
Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists have explained how energetic particles penetrating lunar soil can create molecular hydrogen from water ice. The finding provides insight into how radiation can change the chemistry of water ice throughout the solar system.
11 Jun 2013 Marks On Martian Dunes May Be Tracks Of Dry-Ice Sleds
NASA research indicates hunks of frozen carbon dioxide -- dry ice -- may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go. Researchers deduced this process could explain one enigmatic class of gullies seen on Martian sand dunes by examining images from NASA's Mars Reconnaissance Orbiter (MRO) and performing experiments on sand dunes in Utah and California.
29 May 2013 Cassini Finds Hints of Activity at Saturn Moon Dione
From a distance, most of the Saturnian moon Dione resembles a bland cueball. Thanks to close-up images of a 500-mile-long (800-kilometer-long) mountain on the moon from NASA's Cassini spacecraft, scientists have found more evidence for the idea that Dione was likely active in the past. It could still be active now. "A picture is emerging that suggests Dione could be a fossil of the wondrous activity Cassini discovered spraying from Saturn's geyser moon Enceladus or perhaps a weaker copycat Enceladus," said Bonnie Buratti of NASA's Jet Propulsion Laboratory in Pasadena, Calif., who leads the Cassini science team that studies icy satellites.
24 Jan 2013 Thawing 'Dry Ice' Drives Groovy Action on Mars
Researchers using NASA's Mars Reconnaissance Orbiter see seasonal changes on far-northern Martian sand dunes caused by warming of a winter blanket of frozen carbon dioxide.
8 Jan 2013 Cassini Suggests Icing on a Lake
A new paper by scientists on NASA's Cassini mission finds that blocks of hydrocarbon ice might decorate the surface of existing lakes and seas of liquid hydrocarbon on Saturn's moon Titan. The presence of ice floes might explain some of the mixed readings Cassini has seen in the reflectivity of the surfaces of lakes on Titan.
21 Dec 2012 A Winter Wonderland on Mars
Fall and winter temperatures bring changes to Mars as the carbon dioxide atmosphere turns to dry ice frost that clings to the surface. The Mars Reconnaissance Orbiter used its powerful cameras and spectrometers to capture detailed pictures and measurements of wintry scenes of nature's beauty at work on the Red Planet.
6 Dec 2012 Titan's Gravity Indicates a Thicker, Uneven Icy Crust
It's long been speculated that Saturn's moon Titan may be harboring a global subsurface ocean below an icy crust, based on measurements of its rotation and orbit by NASA's Cassini spacecraft. Titan exhibits a density and shape that indicates a pliable liquid internal layer -- an underground ocean -- possibly composed of water mixed with ammonia, a combination that would help explain the consistent amount of methane found in its thick atmosphere. Now, further analysis of Cassini gravity measurements by a Stanford University team has shown that Titan's ice layer is thicker and less uniform than originally estimated, indicating a more complex internal structure ...
29 Nov 2012 MESSENGER Finds New Evidence for Water Ice at Mercury's Poles
New observations by the MESSENGER spacecraft provide compelling support for the long-held hypothesis that Mercury harbors abundant water ice and other frozen volatile materials in its permanently shadowed polar craters.
28 Sep 2012 Ice May Lurk in Shadows Beyond Moon's Poles
Water ice on the moon may be more widespread than previously thought. Using LRO data, permanent shadows have been spotted far from the lunar poles, expanding the number of sites that would be good candidates for ice to exist.
11 Sep 2012 NASA Orbiter Observations Point To 'Dry Ice' Snowfall On Mars
NASA's Mars Reconnaissance Orbiter data have given scientists the clearest evidence yet of carbon-dioxide snowfalls on Mars. This reveals the only known example of carbon-dioxide snow falling anywhere in our solar system. "These are the first definitive detections of carbon-dioxide snow clouds," said the report's lead author, Paul Hayne of NASA's Jet Propulsion Laboratory in Pasadena, Calif. "We firmly establish the clouds are composed of carbon dioxide -- flakes of Martian air -- and they are thick enough to result in snowfall accumulation at the surface.
30 Aug 2012 Walls of Lunar Crater May Hold Patchy Ice, LRO Radar Finds
Small patches of ice could make up at most five to ten percent of material in walls of Shackleton crater.

NASA's Lunar Reconnaissance Orbiter has been studying the Moon since June 2009. Credit: NASA Scientists using the Mini-RF radar on NASA's Lunar Reconnaissance Orbiter (LRO) have estimated the maximum amount of ice likely to be found inside a permanently shadowed lunar crater located near the Moon's South Pole. As much as five to ten percent of material, by weight, could be patchy ice, according to the team of researchers led by Bradley Thomson at Boston University's Center for Remote Sensing, in Massachusetts.
21 Jun 2012 LRO Finds More Evidence for Ice in Shackleton Crater Near the Moon's South Pole
According to data from NASA's Lunar Reconnaissance Orbiter (LRO), ice may make up as much as 22 percent of the surface material in Shackleton crater at the Moon's south pole.

All Topics
Back to YSS Home
Featured YSS Resource: Eyes on the Solar System - Explore our galactic neighborhood in 3D! Featured YSS Resource: From the Earth to the Solar System Featured YSS Resource: Solar System Lithograph Set
Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writer: Autumn Burdick
Producer: Greg Baerg
Webmaster: David Martin
> NASA Science Mission Directorate
> Budgets, Strategic Plans and Accountability Reports
> Equal Employment Opportunity Data
   Posted Pursuant to the No Fear Act
> Information-Dissemination Policies and Inventories
> Freedom of Information Act
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> USA.gov
> ExpectMore.gov
> NASA Advisory Council
> Open Government at NASA
Last Updated: 16 Apr 2014