Featured Research

from universities, journals, and other organizations

Where To Search For Underground Water On Mars

Date:
March 19, 2007
Source:
University Of Arkansas
Summary:
Researchers suggest locations where future Mars missions might seek liquid water underneath Martian soil. They used a planetary environmental chamber to simulate conditions found on Mars - a carbon dioxide atmosphere, 7 millibars of pressure and temperatures near zero degrees Celsius in the study.

The researchers used a planetary environmental chamber to simulate conditions found on Mars - a carbon dioxide atmosphere, 7 millibars of pressure and temperatures near zero degrees Celsius. Bryson looked at the evaporation rates of ice buried beneath fine-grained basaltic soil at depths of 2.5 to 50 millimeters.

zero degrees Celsius. Bryson looked at the evaporation rates of ice buried beneath fine-grained basaltic soil at depths of 2.5 to 50 millimeters.

"Soil layers only 5 millimeters deep slowed the evaporation process and greatly increased the lifetime of an ice layer," Bryson said. A soil barrier on top of an ice layer can enable the formation of liquid water by slowing the evaporation rate and warming the surface.

Ostrowski examined the evaporation rates of ice beneath montmorillonite, an aluminum-rich clay recently shown to be present on Mars. Montmorillonite is a hydrated clay that requires the presence of water in some form for its creation.

Studies of the clay soil indicate that the diffusion rate doesn't become steady as quickly as other non-clay materials do, possibly indicating that the clay is adsorbing water, either in liquid or gas form.

"This does not directly imply liquid water, but it does give the possibility if the conditions are right," Ostrowski said.

The upcoming Mars Phoenix Lander mission will be looking for environments similar to those investigated in these experiments, and scientists hope to find evidence for water - and possibly life -- in these regions.

Graduate students Kathryn Bryson and Daniel Ostrowski, postdoctoral researcher Vincent Chevrier and Derek Sears, director of the Arkansas Center for Space and Planetary Sciences, will present their findings Friday, March 16, at the Lunar and Planetary Sciences conference in Houston.


Story Source:

The above story is based on materials provided by University Of Arkansas. Note: Materials may be edited for content and length.


Cite This Page:

University Of Arkansas. "Where To Search For Underground Water On Mars." ScienceDaily. ScienceDaily, 19 March 2007. <www.sciencedaily.com/releases/2007/03/070319103155.htm>.
University Of Arkansas. (2007, March 19). Where To Search For Underground Water On Mars. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2007/03/070319103155.htm
University Of Arkansas. "Where To Search For Underground Water On Mars." ScienceDaily. www.sciencedaily.com/releases/2007/03/070319103155.htm (accessed July 23, 2014).

Share This




More Space & Time News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Cargo Craft Undocks from Space Station

Raw: Cargo Craft Undocks from Space Station

AP (July 22, 2014) A Russian Soyuz cargo-carrying spacecraft undocked from the International Space Station on Monday. The craft is due to undergo about ten days of engineering tests before it burns up in the Earth's atmosphere. (July 22) Video provided by AP
Powered by NewsLook.com
NASA Ceremony Honors Moon Walker Neil Armstrong

NASA Ceremony Honors Moon Walker Neil Armstrong

AP (July 21, 2014) NASA honored one of its most famous astronauts Monday by renaming a historic building at the Kennedy Space Center in Florida. It now bears the name of Neil Armstrong, the first man to walk on the moon. (July 21) Video provided by AP
Powered by NewsLook.com
Neil Armstrong's Post-Apollo 11 Life

Neil Armstrong's Post-Apollo 11 Life

Newsy (July 19, 2014) Neil Armstrong gained international fame after becoming the first man to walk on the moon in 1969. But what was his life like after the historic trip? Video provided by Newsy
Powered by NewsLook.com
This Week @ NASA, July 18, 2014

This Week @ NASA, July 18, 2014

NASA (July 18, 2014) Apollo 11 yesterday, Next Giant Leap tomorrow, Science instruments for Europa mission, and more... Video provided by NASA
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins