Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Meteorite Studies Suggest Hidden Water on Mars

Published: Saturday, April 26, 2014
Last Updated: Saturday, April 26, 2014
Bookmark and Share
Latest studies suggest that there is more water present on Mars now than has so far been observed.

Geochemical calculations by researchers at Tokyo Institute of Technology to determine how the water content of Mars has changed over the past 4.5 billion years suggest as yet unidentified reservoirs of water on the planet.

A warmer more watery primordial Martian landscape more closely resembling Earth has long been suggested from geochemical and geological observations. However, as Hiroyuki Kurakawa and colleagues in Japan point out in their recent report “the timing, processes, and the amount of the water loss have been poorly constrained.”

Their latest studies using geochemical meteorite data to understand how the volume of water has changed on Mars over its history suggest there is more water present there now than has so far been observed.

Today Martian water is considered to exist chiefly as ice at the poles of the planet. However geological observations of rocks containing water laid sediments suggest that lakes and oceans once existed. Previous studies have focused on the volumes of lake-like geological structures to extrapolate how much water was previously present on Mars.

In contrast the researchers at Tokyo Institute of Technology and colleagues at Nagoya University and Kyushu University in Japan determined the water quantities over the course of the planet’s history from ratios of the isotopes deuterium and hydrogen (D/H) in ancient meteorites.

Deuterium and hydrogen exist in water at a standard ratio at equilibrium. However hydrogen is lighter and escapes more readily so that the changes in the D/H ratio over the course of time can be used to determine how much water has been lost.

They compared their results with previous geological estimates of the primordial water volume and found discrepancies in the figures that suggest the existence of as yet unidentified reservoirs of water on Mars at present.

They hypothesize that these may be in the form of mid-latitude ice mantles or underground reservoirs.

As hydrogen from water molecules escape oxygen is left behind. These latest results also suggest greater quantities of this oxygen than current models account for.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More Than 3,800+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

New Degradation Proteins Show Route to Cell Survival
Researchers reveal two proteins that induce degradation of certain cell constituents to help cell survival under nutrient-limiting conditions.
Thursday, June 04, 2015
Fruit Fly Studies Shed Light on Adaptability
Collaborative study reveals that neurons change on the molecular level when they are exposed to prolonged light.
Friday, April 17, 2015
Protein-engineered Cages Aid Studies of Cell Functions
The Cages, from researchers at Tokyo Institute of Technology, to deliver an important signalling molecule, carbon monoxide, into cells.
Wednesday, November 19, 2014
Genome Analysis Reveals How Algae Evolved into Land Plants
Researchers analyze the genome of the terrestrial K. flaccidum and compared it with other algae.
Thursday, May 29, 2014
Identifying Link Between Tastes and Circulation in the Face
Research identifies links between the subjective perception of palatability with circulatory responses.
Monday, January 06, 2014
Self Assembled Nanostructures for Hostile Environments
Scientists at Tokyo Tech have developed a new self-assembled nanostructure that can survive very hot or saline environments.
Monday, June 03, 2013
Scientific News
Health Risks of Saturated Fats Aggravated by Immune Response
Research shows that the presence of saturated fats resulted in monocytes migrating into the tissues of vital organs.
Changing the Biological Data Visualisation World
Scientists at TGAC, alongside European partners, have created a cutting-edge, open source community for the life sciences.
NIH Study Finds Calorie Restriction Lowers Some Risk Factors for Age-Related Diseases
Two-year trial did not produce expected metabolic changes, but influenced other life span markers.
Immunotherapy Agent Benefits Patients with Drug-Resistant Multiple Myeloma in First Human Trial
Daratumumab proved generally safe in patients, even at the highest doses.
Low-level Arsenic Exposure Before Birth Associated with Early Puberty in Female Mice
Study examine whether low-dose arsenic exposure could have similar health outcomes in humans.
Inciting an Immune Attack On Cancer Cells
A new minimally invasive vaccine that combines cancer cells and immune-enhancing factors could be used clinically to launch a destructive attack on tumors.
‘Mutation-Tracking’ Blood Test for Breast Cancer
Scientists have developed a blood test for breast cancer able to identify which patients will suffer a relapse after treatment, months before tumours are visible on hospital scans.
Cellular Contamination Pathway for Heavy Elements Identified
Berkeley Lab scientists find that an iron-binding protein can transport actinides into cells.
Intensity of Desert Storms May Affect Ocean Phytoplankton
MIT study finds phytoplankton are extremely sensitive to changing levels of desert dust.
Common ‘Heart Attack’ Blood Test May Predict Future Hypertension
Small rises in troponin levels may have value as markers for subclinical heart damage and high blood pressure.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,800+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!