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

Join For Free

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 3,200+ scientific posters on ePosters
  • More Than 4,700+ 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 Imaging System Enables Simultaneous Acquisition Of Color And NIR Images
Researchers at Tokyo Institute of Technology and Olympus R&D have developed a new imaging system for simultaneous acquisition of color (RGB) and near-infrared (NIR) images using only a single image sensor.
Friday, June 03, 2016
Microdroplet Reactors Mimic Living Systems
Researchers use microdroplets to study non-equilibrium reactions like those in living organisms.
Tuesday, February 09, 2016
Ferritin Releases Carbon Monoxide in Regulated Therapeutic Doses
Studies demonstrate a way of tapping into the potential therapeutic properties of carbon monoxide by using light.
Thursday, September 10, 2015
Searching for the Origins of RNA
Structure generation software allows scientists to begin exploring the types of nucleic acids that could have existed before, alongside, or indeed instead of, RNA and DNA.
Wednesday, September 09, 2015
Genetic Manipulation for Algal Biofuel Production
Studies of the genes involved in oil synthesis in microalgae allow scientists to use a gene promoter to increase algal production of triacylglycerols, which in turn enhances potential biofuel yields.
Tuesday, September 08, 2015
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
Platelets are the Pathfinders for Leukocyte Extravasation During Inflammation
Findings from the study could help in the prevention and treatment of inflammatory pathologies.
ASMS 2016: Targeting Mass Spectrometry Tools for the Masses
The expanding application range of MS in life sciences, food, energy, and health sciences research was highlighted at this year's ASMS meeting in San Antonio, Texas.
Benchtop Automation Trends
Gain a better understanding of current interest in and future deployment of benchtop automated systems.
Some Women With PCOS May Have Adrenal Disorder
Researchers at NIH have found that a subgroup of women with PCOS, a leading cause of infertility, may produce excess adrenal hormones.
Alzheimer's Genetics Point To New Research Direction
A University of Adelaide analysis of genetic mutations which cause early-onset Alzheimer’s disease suggests a new focus for research into the causes of the disease.
Penn State, TB Alliance, and GSK Partner To Discover New Treatments For TB
A new collaboration between TB Alliance, GSK, and scientists in the Eberly College of Science seeks to find new small molecules that can be used to create antibiotics in the fight against tuberculosis (TB).
Manufactured Stem Cells To Advance Clinical Research
Clinical-grade cell line will enable development of new therapies and accelerate early-stage clinical research.
Faster Detection of Pathogens in the Lungs
Thanks to new molecular-based methods, mycobacterial pathogens that cause pulmonary infections or tuberculosis can now be detected much more quickly.
Contagious Cancers Are Spreading in Shellfish
Direct transmission of cancer among some marine animals may be more common than once thought, suggests a new study published in Nature by researchers at Columbia University Medical Center (CUMC).
Contagious Cancers Are Spreading in Shellfish
Direct transmission of cancer among some marine animals may be more common than once thought, suggests a new study published in Nature by researchers at Columbia University Medical Center (CUMC).
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
3,200+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!