Sentences with phrase «underground water ice»

At this pit on Mars, the steep slope at the northern edge (toward the top of the image) exposes a cross-section of a thick sheet of underground water ice.

Not exact matches

The MARSIS radar, which will soon be deployed on Mars Express, should be able to detect underground liquid water but may have trouble differentiating between ice and rocky soil.
The discovery of waterlogged minerals and a growing ice wall suggests that the dwarf planet could harbor underground liquid water or slushy brine, which has escaped through cracks and craters in the recent past and may still be seeping out today.
Researchers previously used MRO's Shallow Radar (SHARAD) to map extensive underground water - ice sheets in middle latitudes of Mars and estimate that the top of the ice is less than about 10 yards beneath the ground surface.
«It's very cool, because water can go underground, it can move around the ocean, it can change from ice to liquid and runoff, but it can't hide its mass from us,» says Watkins.
They are linked by rivers that form when melting ice expands the lakes, increasing pressure under the ice cap and causing underground channels of water and mud to squirt out.
Lakes may form when meteorite impacts heat ice in the crust or when underground reservoirs of water kept liquid by geothermal heat leak onto the surface.
A new study by scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and the University of California, Irvine, shows that while ice sheets and glaciers continue to melt, changes in weather and climate over the past decade have caused Earth's continents to soak up and store an extra 3.2 trillion tons of water in soils, lakes and underground aquifers, temporarily slowing the rate of sea level rise by about 20 percent.
It also provides a solution to three puzzles: we now know why rivers formed where they are observed today; why underground reservoirs of water ice, until now considered anomalous, are located far from the poles of Mars; and why the Tharsis dome is today situated on the equator.
Although most of the water on Mars is locked up in ice, the possibility remains that some liquid water could exist in underground aquifers.
The spacecraft carries the first radar instrument ever flown to Mars which has returned pioneering sub-surface sounding measurements that show underground water - ice deposits.
The latest data from the Dawn space probe points to underground ice flows and a water vapour atmosphere.
So the discovered traces of water - ice suggest some underground ice was recently exposed and that there must be some mechanism to explain how the surface was disturbed in this way.
This constant flexing of Europa by Jupiter's immense gravity melts its interior in the same way it melts that of neighboring moon Io, in essence keeping the water ice layers in the interior of Europa in a liquid state that form a global underground ocean.
It's possible that water from the underground ocean itself could be forced through Europa's ice shell to erupt on the surface.
So to address the first concern, four families worked with the World Wildlife Fund to create polar - bear resistant food storage containers that can be stored above ground, rather than underground where traditional ice cellars - some more than 100 years old and upwards of 12 feet deep - are beginning to melt and fill with water.
a b c d e f g h i j k l m n o p q r s t u v w x y z