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 2,400+ scientific posters on ePosters
  • More Than 3,700+ 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
RNAi Screening Trends
Understand current trends and learn which application areas are expected to gain in popularity over the next few years.
Diagnostic Test Developed for Enterovirus D68
researchers at Washington University School of Medicine in St. Louis have developed a diagnostic test to quickly detect enterovirus D68 (EV-D68), a respiratory virus that caused unusually severe illness in children last year.
How a Kernel Got Naked and Corn Became King
Ten thousand years ago, a golden grain got naked, brought people together and grew to become one of the top agricultural commodities on the planet.
Sweet Revenge Against Superbugs
A special type of synthetic sugar could be the latest weapon in the fight against superbugs.
New Material Opens Possibilities for Super-Long-Acting Pills
A pH-responsive polymer gel could create swallow able devices, including capsules for ultra-long drug delivery.
How To Keep Your Rice Arsenic-Free
Researchers at Queen’s University Belfast have made a breakthrough in discovering how to lower worrying levels of arsenic in rice that is eaten all over the world.
New Tool For Investigating RNA Gone Awry
A new technology – called “Sticky-flares” – developed by nanomedicine experts at Northwestern University offers the first real-time method to track and observe the dynamics of RNA distribution as it is transported inside living cells.
Computer Model Could Explain how Simple Molecules Took First Step Toward Life
Two Brookhaven researchers developed theoretical model to explain the origins of self-replicating molecules.
New Tech Enables Epigenomic Analysis with a Mere 100 Cells
A new technology that will dramatically enhance investigations of epigenomes, the machinery that turns on and off genes and a very prominent field of study in diseases such as stem cell differentiation, inflammation and cancer has been developed by researchers at Virginia Tech.
Access Denied: Leukemia Thwarted by Cutting Off Link to Environmental Support
A new study reveals a protein’s critical – and previously unknown -- role in the development and progression of acute myeloid leukemia (AML), a fast-growing and extremely difficult-to-treat blood cancer.
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
2,400+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!