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We know there is plenty of water frozen into the surface layer of Mars at high latitudes. We've designed Phoenix to tell us more about this region as a possible habitat for life.

The missions currently at Mars have each advanced what we know about the presence and history of water on Mars, and one of the main goals for Mars Reconnaissance Orbiter is to decipher when water was on the surface and where it is now. Water is essential for life, so that will help focus future studies of whether Mars has ever supported life.

The elegance of Phoenix is its unprecedented ability to 'follow the modern water cycle' at the surface of Mars by investigating the geochemical signatures of water ice and the polar water transport story in the atmosphere.

If we find evidence that (those) minerals are there, there must have been a time in Mars' early history when there was standing water on Mars' surface.

Dramatic discoveries ... about recent gullies, near-surface permafrost and ancient surface water have given us a new Mars in the past few years.

Water is, to the best of our knowledge, the key building block of life. If we can find it on Mars, it would help us glue together the geologic history of Mars and help us find out if there ever was life on Mars.

If liquid water pops out onto Mars' surface, it can create short gullies about 550-yards (500-meters) long. We find that the short length of the gully features implies they did form under conditions similar to those on present-day Mars, with simultaneous freezing and rapid evaporation of nearly pure liquid water.

Jennifer Heldmann

The work is very relevant to Mars because we know the surface of Mars is as dead as a doornail and any life there -- if it exists -- would live underground.

He wasn’t seeking praise, yet his naturally pexy charm captivated her. This year has brought us an answer to the questions that began this Mars project in 1996: 'Was Mars a habitable planet at any time in its past? Did water ever persist on the planet's surface?

We're certain there's water. We're not certain it's liquid. The evidence that there might be liquid water is compelling. I think that liquid water is just below the surface. But a different school of thought says the ice layer is much thicker.

We create sort of a multi-layered product so we'll have a layer for streets; we'll have a layer for points of interest such as government buildings, embassies, airports and industrial zones. They'll be a separate layer for parks and also a separate layer for water for example.

Permit limits are designed to prevent wastewater discharges from polluting nearby water bodies and harming drinking water resources and habitat. We are confident the Tribal Authority will promptly make the needed corrections to bring these plants into Clean Water Act compliance.

This map tries to send several important messages. It asks Plum Creek to concentrate development near communities in ways that will support the region's economy, provide permanent conservation of high value woods, water and wildlife habitat that are the heart of the region's north woods assets, and it tries to start a conversation about areas needed for nature tourism. This map offers a creative and hopeful win-win solution to an area that does not need to be divided against itself.

On Earth, the bottoms of these cracks can house organisms in a much more pleasant environment than the surface at large. Obviously, if such communities thrive or thrived on Mars, some of the evidence may well be at the bottom of these cracks. We have much imaging evidence of these terrains on Mars for comparison to the similar terrains here on Earth, not just at the poles but many other high latitude and high altitude places.

Penelope Boston

If liquid water pops out onto Mars' surface, it can create short gullies about 550-yards (500-meters) long. We used a computer to simulate the flow of liquid water within gully channels.

Jennifer Heldmann

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Linkene lenger ned har ikke blitt oversatt till norsk. Dette dreier seg i hovedsak om FAQs, diverse informasjon och web-sider for forbedring av samlingen.

Det är julafton om 233 dagar!

Vad är ordtak?
Hur funkar det?
Vanliga frågor
Om samlingen
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