Keep up with the news by installing RT’s extension for . Never miss a story with this clean and simple app that delivers the latest headlines to you.

 

NASA rover Curiosity finds water in Mars soil - report

Published time: September 26, 2013 21:06
Edited time: September 28, 2013 10:31
NASA's Mars rover Curiosity (AFP Photo / NASA)

NASA's Mars rover Curiosity (AFP Photo / NASA)

The rover Curiosity has discovered water in fine-grained soil on the surface of Mars, NASA confirmed Thursday in a series of papers published in the journal Science.

Each cubic foot of Martian soil contains about two pints of liquid water, though the molecules are bound to other minerals in the soil.

Curiosity first landed on Mars in August 2012 on Gale Crater, near the equator of the planet. Its aim was to circle and scale Mount Sharp, in the middle of the crater, a five-kilometer-tall mountain that will help NASA understand the history of Mars.

NASA scientists released the first detailed, peer-reviewed results of Curiosity’s experiments done during its first four months on Mars in a series of five papers published in Science.

"We tend to think of Mars as this dry place -- to find water fairly easy to get out of the soil at the surface was exciting to me," said Laurie Leshin, dean of science at Rensselaer Polytechnic Institute and lead author on the Science paper that verified existence of water in the surface soil.

"If you took about a cubic foot of the dirt and heated it up, you'd get a couple of pints of water out of that -- a couple of water bottles' worth that you would take to the gym,” she said, according to the Guardian.

Curiosity found about 2 percent of the soil, by weight, was water by scooping dirt samples under its wheels and depositing them into an oven in a centralized compartment called Sample Analysis at Mars.

"We heat [the soil] up to 835C and drive off all the volatiles and measure them," said Leshin. "We have a very sensitive way to sniff those and we can detect the water and other things that are released."

The rover also found sulphur dioxide, carbon dioxide and oxygen as soil and minerals collected decomposed with increased temperature.

This handout provided March 30, 2013 by NASA shows holes drilled into rock by NASA's Mars rover Curiosity in the "Yellowknife Bay" area of Gale Crate (AFP Photo / NASA)

A main aim of Curiosity’s missions is to find out whether Mars was ever hospitable to life. Scientists believe water was once abundant on the surface of the planet, but it has since almost completely disappeared.

"The rocks and minerals are a record of the processes that have occurred and [Curiosity is] trying to figure out those environments that were around and to see if they were habitable," Peter Grindrod, a planetary scientist at University College London who was not involved in the analyses of Curiosity data, told the Guardian.

The other papers published in Science included x-ray diffraction images of the soil in an attempt to examine the crystalline structure of the minerals on Mars’ surface, and analysis of a volcanic rock called "Jake_M,” named after a NASA engineer. The findings show the rock was similar to a type found on Earth known as mugearite, often found on ocean islands and in rift zones.

The published results of Curiosity’s experiments are the beginning of insights into Mars expected to come in the next few years.

"It's the first flexing of Curiosity's analytical muscles," Grindrod said. "Curiosity spent a long time checking out the engineering, instruments and procedures it was going to use – these papers cover just that engineering period. The targets here weren't chosen because of their science goals as such but as good targets to test out the instruments."

Leshin said in addition to the excitement of exploring a new planet, the findings will help planning for any human mission in the future.

"I do think it's inevitable that we'll send people there and so let's do its as smartly as we can. Let's get as smart as we can before we go,” she said.

The soil on Mars also showed the existence of a chemical called perchlorate, which can be toxic to humans.

"It's only there at a 0.5% level in the soil but it impedes thyroid function," she said. "If humans are there and are coming into contact with fine-grained dust, we have to think about how we live with that hazard. To me it's a good connection between the science we do and the future human exploration of Mars."

Comments (24)

 

Antonio Teran 17.11.2013 13:35

Steven Severn 29.09.2013 09:05

If we have the technology to explore other worlds why can't we feed the many hungry people on this world?

Sure ly those drones and missiles could be used to target hungry people with food? Or is the plan simply to kill off the hungry people so the problem goes away?

  


because there are those who doesnt want to be helped, countries like north korea rather die instead of receiving food from capitalist countries, what can you do about that?

 

Pearson Chibehe 21.10.2013 10:05

Hihihihihii martians must must be very shy....Go drill a well in Somalia NASA ,it will cost you a bilionth of the cost + you get to be thnked.

 

G Eriksson 29.09.2013 11:35

Tempt with some food - to persuade the inhabitants of Mars into leaving their hiding places!

Do as with hedgehogs or bacteria - tempt with milk or nutrient agar!

View all comments (24)
Add comment

Authorization required for adding comments

Register or

Name

Password

Show password

Register

or Register

Request a new password

Send

or Register

To complete a registration check
your Email:

OK

or Register

A password has been sent to your email address

Edit profile

X

Name

New password

Retype new password

Current password

Save

Cancel

Follow us

Follow us