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NASA Confirms Evidence That Liquid Water Flows On Today’s Mars - Science/Technology - Nairaland

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NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Infomizer(m): 6:32pm On Sep 28, 2015
New findings from NASA's Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.

Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.

“Our quest on Mars has been to ‘follow the water,’ in our search for life in the universe, and now we have convincing science that validates what we’ve long suspected,” said John Grunsfeld, astronaut and associate administrator of NASA’s Science Mission Directorate in Washington. “This is a significant development, as it appears to confirm that water -- albeit briny -- is flowing today on the surface of Mars.”

To cut the long story short, water is flowing in Mars as we speak..Want more?








These dark, narrow, 100 meter-long streaks called recurring slope lineae flowing downhill on Mars are inferred to have been formed by contemporary flowing water. Recently, planetary scientists detected hydrated salts on these slopes at Hale crater, corroborating their original hypothesis that the streaks are indeed formed by liquid water. The blue color seen upslope of the dark streaks are thought not to be related to their formation, but instead are from the presence of the mineral pyroxene. The image is produced by draping an orthorectified (Infrared-Red-Blue/Green(IRB)) false color image (ESP_030570_1440) on a Digital Terrain Model (DTM) of the same site produced by High Resolution Imaging Science Experiment (University of Arizona). Vertical exaggeration is 1.5.
Credits: NASA/JPL/University of Arizona

New findings from NASA's Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.

Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.

“Our quest on Mars has been to ‘follow the water,’ in our search for life in the universe, and now we have convincing science that validates what we’ve long suspected,” said John Grunsfeld, astronaut and associate administrator of NASA’s Science Mission Directorate in Washington. “This is a significant development, as it appears to confirm that water -- albeit briny -- is flowing today on the surface of Mars.”

These downhill flows, known as recurring slope lineae (RSL), often have been described as possibly related to liquid water. The new findings of hydrated salts on the slopes point to what that relationship may be to these dark features. The hydrated salts would lower the freezing point of a liquid brine, just as salt on roads here on Earth causes ice and snow to melt more rapidly. Scientists say it’s likely a shallow subsurface flow, with enough water wicking to the surface to explain the darkening.


"We found the hydrated salts only when the seasonal features were widest, which suggests that either the dark streaks themselves or a process that forms them is the source of the hydration. In either case, the detection of hydrated salts on these slopes means that water plays a vital role in the formation of these streaks," said Lujendra Ojha of the Georgia Institute of Technology (Georgia Tech) in Atlanta, lead author of a report on these findings published Sept. 28 by Nature Geoscience.

Ojha first noticed these puzzling features as a University of Arizona undergraduate student in 2010, using images from the MRO's High Resolution Imaging Science Experiment (HiRISE). HiRISE observations now have documented RSL at dozens of sites on Mars. The new study pairs HiRISE observations with mineral mapping by MRO’s Compact Reconnaissance Imaging Spectrometer for Mars (CRISM).

The spectrometer observations show signatures of hydrated salts at multiple RSL locations, but only when the dark features were relatively wide. When the researchers looked at the same locations and RSL weren't as extensive, they detected no hydrated salt.

Ojha and his co-authors interpret the spectral signatures as caused by hydrated minerals called perchlorates. The hydrated salts most consistent with the chemical signatures are likely a mixture of magnesium perchlorate, magnesium chlorate and sodium perchlorate. Some perchlorates have been shown to keep liquids from freezing even when conditions are as cold as minus 94 degrees Fahrenheit (minus 70 Celsius). On Earth, naturally produced perchlorates are concentrated in deserts, and some types of perchlorates can be used as rocket propellant.

Perchlorates have previously been seen on Mars. NASA's Phoenix lander and Curiosity rover both found them in the planet's soil, and some scientists believe that the Viking missions in the 1970s measured signatures of these salts. However, this study of RSL detected perchlorates, now in hydrated form, in different areas than those explored by the landers. This also is the first time perchlorates have been identified from orbit.

MRO has been examining Mars since 2006 with its six science instruments.

"The ability of MRO to observe for multiple Mars years with a payload able to see the fine detail of these features has enabled findings such as these: first identifying the puzzling seasonal streaks and now making a big step towards explaining what they are," said Rich Zurek, MRO project scientist at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

For Ojha, the new findings are more proof that the mysterious lines he first saw darkening Martian slopes five years ago are, indeed, present-day water.

"When most people talk about water on Mars, they're usually talking about ancient water or frozen water," he said. "Now we know there’s more to the story. This is the first spectral detection that unambiguously supports our liquid water-formation hypotheses for RSL."

The discovery is the latest of many breakthroughs by NASA’s Mars missions.

“It took multiple spacecraft over several years to solve this mystery, and now we know there is liquid water on the surface of this cold, desert planet,” said Michael Meyer, lead scientist for NASA’s Mars Exploration Program at the agency’s headquarters in Washington. “It seems that the more we study Mars, the more we learn how life could be supported and where there are resources to support life in the future.”

There are eight co-authors of the Nature Geoscience paper, including Mary Beth Wilhelm at NASA’s Ames Research Center in Moffett Field, California and Georgia Tech; CRISM Principal Investigator Scott Murchie of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland; and HiRISE Principal Investigator Alfred McEwen of the University of Arizona Lunar and Planetary Laboratory in Tucson, Arizona. Others are at Georgia Tech, the Southwest Research Institute in Boulder, Colorado, and Laboratoire de Planétologie et Géodynamique in Nantes, France.

The agency’s Jet Propulsion Laboratory (JPL) in Pasadena, California manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington. Lockheed Martin built the orbiter and collaborates with JPL to operate it.



https://www.nasa.gov/press-release/nasa-confirms-evidence-that-liquid-water-flows-on-today-s-mars

1 Like 1 Share

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Infomizer(m): 6:34pm On Sep 28, 2015
Typo on the topic...It's NASA!

Seun, Lalasticlala, UjSizzle, MkMyers45 frontpage ya o!

1 Like

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Lobolintin(m): 6:34pm On Sep 28, 2015
Snoring .....confirm UFO first..we know this since 105BC

12 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Infomizer(m): 6:36pm On Sep 28, 2015
Lobolintin:
Snoring .....confirm UFO first..we know this since 105BC

Sabi man! I see you! Gbogbo Mars Rover!

After having read this news on a number of social media sites and read through some comments, I officially give up on my country's future...Just look at majority of the comments under this topic here...Se na myopia we go call am? Ignorance? Abi na dumbassness? Seriously?? Smh undecided

12 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Nobody: 6:48pm On Sep 28, 2015
Haha. Was just about to post this. Also there's a typo on your topic, it should read NASA, not ASA.
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Infomizer(m): 7:10pm On Sep 28, 2015
Karmanaut:
Haha.
Was just about to post this.
Also there's a typo on your topic, it should read NASA, not ASA.

Yea man, I saw it but I'm kinda lost on how to rectify it from my mobile phone.

2 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by kennyman2000(m): 7:15pm On Sep 28, 2015
Hmmmm..
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by babasanti: 7:15pm On Sep 28, 2015
sai buhari, the FRESIDENT OF WEST LIEGERIA

19 Likes 2 Shares

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Realgana(m): 7:15pm On Sep 28, 2015
Is it drinkable?
People wey read the novel should answer me please.
Meanwhile,thunder go fire all the boys wey de use female moniker on Nairaland most especially Cr77 and Ecoterrors.

14 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Adesiji77: 7:16pm On Sep 28, 2015
Funny how these oyinbos spend millions of dollars to research water whose quantity no reach the well in my backyard undecided

Na joke o cheesy grin

15 Likes 2 Shares

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by jmoore(m): 7:16pm On Sep 28, 2015
O2 nko?

Abi na CO2 person go breathe in there?

3 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by steffans(m): 7:16pm On Sep 28, 2015
Vacation spot loading cheesy

4 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by bqlekan(m): 7:17pm On Sep 28, 2015
Wow! So can I move to mars aiidy?.. me tired of earth and earthlings grin

9 Likes 2 Shares

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Nobody: 7:17pm On Sep 28, 2015
Na to go mars remain o. Make i quickly go form my own country there....

I go be president grin

22 Likes 3 Shares

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Dottore: 7:17pm On Sep 28, 2015
How does that affect our noble earth.
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Segadem(m): 7:17pm On Sep 28, 2015
ok
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Segadem(m): 7:17pm On Sep 28, 2015
Dottore:
How does that affect our noble earth.
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by denisbath(m): 7:18pm On Sep 28, 2015
shocked :owater flows on mars

1 Like

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Sweetyie(f): 7:18pm On Sep 28, 2015
Yaaaaaaaay. Second earth
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Chiadikaobi(m): 7:18pm On Sep 28, 2015
Nice discovery.

I troway cap for una

6 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by scholes0(m): 7:19pm On Sep 28, 2015
Ohhhhh!, But I thought Jehovah God separated the waters of the Heavens from those of the "Earth" only on Planet earth??
shocked shocked

6 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by Emekamex(m): 7:19pm On Sep 28, 2015
Breaking News: Nigerian Airspace Management confirms existence of aliens of Yoruba lineage.

58 Likes 6 Shares

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by haibe(m): 7:19pm On Sep 28, 2015
Cool
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by denisbath(m): 7:19pm On Sep 28, 2015
shocked
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by jimmyolasun: 7:19pm On Sep 28, 2015
Naa to ready pack all my bag and go mars niiyen... Since they say we are near the end of the world...

2 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by mustiiz(m): 7:20pm On Sep 28, 2015
Karmanaut:
Haha. Was just about to post this. Also there's a typo on your topic, it should read NASA, not ASA.
Leave am he think say na ASA wey dey sing song ...

3 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by cyberdurable(m): 7:20pm On Sep 28, 2015
On my way to Mars grin grin Buhari I don't wanna see ur body odour there biko...


dúllard

------------------------------
grin Modified::: Somebody said even in Mars, the part kept for Nigeria will still experience Backwardness and Corruption cheesy grin

11 Likes

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by lovinhubby2wife(m): 7:20pm On Sep 28, 2015
okay na..
Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by chino11(m): 7:20pm On Sep 28, 2015
Oyibo always tempting GOD under the guise of science. The same GOD who placed man on earth planet knows that it is the best place man can co-exist with all the resources provided.

9 Likes 1 Share

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by emmanuel596(m): 7:21pm On Sep 28, 2015
This will not stop sarakis trial

4 Likes 1 Share

Re: NASA Confirms Evidence That Liquid Water Flows On Today’s Mars by babywhite(f): 7:21pm On Sep 28, 2015
maybe we should relocate ozone layer Don melt finish and we are affected

1 Like

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