Sentences with phrase «water ice deposits»

Permanently shadowed craters near the lunar polar regions have been found to harbor water ice deposits and organic compounds.

Not exact matches

Lurking between Mars and Jupiter is the largest asteroid in the solar system: a dwarf planet called Ceres, which has ice volcanoes, salt deposits, and other features that suggest it's hiding an ocean of salt water.

No one knows what the bright spots are but guesses abound: Perhaps they are scars from recent impacts or minerals deposited by active geysers or water ice erupted by «cryovolcanoes» — or something even wilder.

Many scientists think these permanently shadowed regions, such as the floors on impact craters in the Moon's polar regions, could hold large deposits or water ice.

The study notes that narrowing down that percent range requires particle accelerator experiments on water ice to more accurately gauge the number of chemical reactions that result per unit of energy deposited by cosmic rays and solar energetic particles.

Water ice and other deposits also have been identified in cold traps near the north pole on Mercury.

There could be eons - old ice deposits buried below ground and newer water at the surface.

Circling the poles, the LRO will profile mineral abundances, scout potential landing sites, and look for water - ice deposits, imaging the terrain to a resolution of three feet.

Scientists analyzing the texture of the rocks deposited by the landslides say they were transported by liquid water, water ice, or mud.

The deposits are exposed in cross section as relatively pure water ice, capped by a layer one to two yards (or meters) thick of ice - cemented rock and dust.

At some of them, the exposed deposit of water ice is more than 100 yards, or meter, thick.

Impacts exposing subsurface ice deposits and generating hydrothermal activity are one possible explanation for the bright spots and Herschel's water vapor; «cryovolcanoes» that erupt volatiles such as water rather than rock are another.

Rime forms when droplets of water vapor deposit directly as ice on surfaces.

«The conditions on Ceres are right for accumulating deposits of water ice,» said Norbert Schorghofer, a Dawn guest investigator at the University of Hawaii at Manoa.

«While cold traps may provide surface deposits of water ice as have been seen at the moon and Mercury, Ceres may have been formed with a relatively greater reservoir of water,» said Chris Russell, principal investigator of the Dawn mission, based at the University of California, Los Angeles.

The paleoclimate data, which included mainly changes in the oxygen isotopes of the calcium carbonate deposits, were then compared to similar records from other caves, ice cores, and sediment records as well as model predictions for water availability in the Middle East and west central Asia today and into the future.

But an existing ice deposit might also be an exploitable water source for future human exploration.»

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.

In addition to water, organic molecules, which could have been deposited on the surface by crashing comets, somehow would have to get through the thick shells of ice for life to form, a situation that puts Saturn's geyser - spewing moon Enceladus at the top of Nimmo's list of potential spots for life.

Mars Express» antenna booms form the probe's Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) instrument, a ground - penetrating radar designed to peer beneath the red planet's surface and scan for deposits of water or ice.

«The randomly jumbled mountains might be huge blocks of hard water ice floating within a vast, denser, softer deposit of frozen nitrogen within the region informally named Sputnik Planum.»

Dr. Jerison studies systems governed by simple rules that nonetheless exhibit complex behaviors, such as phase transitions — for instance, when a slight temperature increase causes ice to melt into liquid water; and threshold phenomena — for instance, when a small extra deposit of soil causes a stable slope to topple over into a landslide.

The spacecraft observed a dramatic geological landscape, including complex interactions between massive deposits of water ice, methane, and frozen carbon monoxide.

Water is darker than snow, but dust as well as soot from wildfires can also be swept up from far off locales and deposited on the ice sheet.

All the bright (radar - reflective) features are believed to be deposits of frozen volatile substances, likely water ice, at least several metres thick in the permanently shaded floors of craters.

Silt is a solid, dust - like sediment that water, ice, and wind transport and deposit.

The Utopia Planitia region on the planet Mars has ice deposit that holds as much water as the Lake Superior.

The ExoMars Trace Gas Orbiter will use a neutron detector — the Fine Resolution Epithermal Neutron Detector or FREND — to map subsurface hydrogen to a depth of 1 m to reveal deposits of water - ice hidden just below the surface.

«This deposit is probably more accessible than most water ice on Mars, because it is at a relatively low latitude and it lies in a flat, smooth area where landing a spacecraft would be easier than at some of the other areas with buried ice,» researcher Jack Holt of the University of Texas said in a statement.

Huge chunks of smooth, dazzlingly blue ice are deposited on the beach and with the changing tidal waters, you never quite know what the layout of the beach is going to be until you get there.

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The water in the pool is dyed to precisely match the color of the sky and then the overflow from the pool is frozen into ice cubes that are deposited into the chute, which in turn melt into the pool, creating a closed system of melting and freezing blue water.

I suspect that what was happening was that there was mass loss, but there was also thermal expansion of the ice, as melt water drained down through the ice and froze, depositing its heat of fusion and raising the temperature.

The rise of CO2 from 270ppm to now over 400ppm, the extent of equatorial and sub tropical deforestation, the soot deposits on the polar ice caps, the increase in atmospheric water vapour due to a corresponding increase in ocean temps and changes in ocean currents, the extreme ice albedo currently happening in the arctic etc, etc are all conspiring in tandem to alter the climate as we know it.

White ice crystals deposited on the surface of objects that have a temperature below the freezing point of water.

The clues found in sediments deposited during the late Holocene suggest that an ocean current that circles the southern polar region, known as Circumpolar Deep Water, flowed underneath the Cosgrove Ice Shelf and melted it.

Deposition nuclei are analogous to condensation nuclei in that water vapour directly deposits as ice crystals on the aerosol.

Ice has a huge albedo compared to everything else, and represents an enormous reservoir of cold fresh water deposited on continent - sized chunks of the globe (not to mention winter snowfall in regions where it isn't «permanent» and glaciers where it is).

But the center's pitch also includes access to deep - water environments such as beneath the ice caps where energy companies are seeking to explore new deposits of oil and natural gas, including in the Arctic, which is now more accessible because of the warming climate.

The amount of detrital petrological tracers transported by icebergs and deposited in the ice - rafted debris belt (an Atlantic region between 40 - 50 ° N) greatly increases during episodes of southward and eastward advection of cold surface waters and drift ice from the Nordic and Labrador seas (Bond et al., 2001; figure 48 A).

[1] Originally thought to occur only in the outer regions of the Solar System where temperatures are low and water ice is common, significant deposits of methane clathrate have been found under sediments on the ocean floors of Earth.

[1] Originally thought to occur only in the outer regions of the Solar System, where temperatures are low and water ice is common, significant deposits of methane clathrate have been found under sediments on the ocean floors of the Earth.

I recall one post on how Earth came out of a snowball, which explanation may be a possibility but then again there may be other explanations (eg., oceanic volcanos splitting in the ice and thereby releasing some water vapour, soot deposits changing albedo, even meteor collision — who knows given the lack of evidence).

1) It includes deposits on non-carbonated beverages such as bottled water, iced tea, juice and sports drinks; and,

The Mars Ice House has created an action plan for the deployment and construction sequence involving a Mars descent vehicle, a deployable membrane, and semi-autonomous robotic printers to gather and deposit subsurface water ice for the 3D printing of the houIce House has created an action plan for the deployment and construction sequence involving a Mars descent vehicle, a deployable membrane, and semi-autonomous robotic printers to gather and deposit subsurface water ice for the 3D printing of the houice for the 3D printing of the house.

Chunks of ice deposited by the neighbouring glacier swirl across the otherwise untouched lake and provide cabin colonists with an organic view of the water and craggy peaks beyond with just the mustard shelter for company.