Curiosity findings raises the question, was there once life on Mars?


Single Mars rock-450-80

 

NASA hasn’t been bashful about updating the world with the findings of the Curiosity rover currently exploring Mars.

 

Since Curiosity landed back in August 2012, we’ve gotten plenty of updates on the progress of the mission, whether they were worthwhileor not.

 

There has been little success in finding actual Martian organic material during Curiosity’s expedition, butsome of the findings seemed to show the potential for organic life on Mars did at one time exist.

 

On Tuesday, NASA revealed a startling new discovery, which further proved that at one time, Mars was perfectly suitable for living organisms.

 

The answer is yes

 

This latest breakthrough was found in a new rock sample collected by Curiosity, which contained several of the key elements necessary for life.

 

Scientists were able to find sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon in powder cultivated from sedimentary rock near an ancient stream bed in the Gale Crater.

 

“A fundamental question for this mission is whether Mars could have supported a habitable environment,” said Michael Meyer, lead scientist for NASA’s Mars Exploration Program at the agency’s headquarters in Washington.

 

“From what we know now, the answer is yes.”

 

The analyzed data showed the area Curiosity was currently exploring could have at one time been the end of an ancient river or a wet lake bed, both of which would have provided the proper growing environment for microbes.

 

“We have characterized a very ancient, but strangely new ‘gray Mars’ where conditions once were favorable for life,” said John Grotzinger, Mars Science Laboratory project scientist at the California Institute of Technology in Pasadena, Calif.

 

Scientists plan to continue exploring the local area (known as Yellowknife Bay) with Curiosity for another few weeks before heading off to the Gale Crater’s central mound, Mount Sharp.

 

It’s there NASA believes it will find a more definitive answer as to the duration and diversity of the habitable conditions Mars once experienced.

Source: techradar.

 

The Great Martian Mystery Revealed.


The finale of 2012’s Great Martian Mystery was finally on stage Monday at the American Geophysical Union conference in San Francisco. A panel of Mars Science Laboratory scientists were first up (AGU knew better than to keep the TV networks waiting; their collective attention spans would be rapidly exceeded).

First came Paul Mahaffy, Chief of the Atmospheric Experiments Laboratory in the Solar System Exploration Division of the Goddard Space Flight Center and in charge of the Sample Analysis at Mars (SAM) instrument, which is capable of detecting organic molecules: “SAM has no definitive detection to report of organic compounds.”

Next was John Grotzinger, the mission scientist for MSL: “Even though [Mahaffy’s] instrument detected organic compounds, first of all we have to determine whether they’re indigenous to Mars.”

So Mahaffy said, in effect, “We didn’t find anything,” while Grotzinger said, “He found it, but we’ve got to make sure it’s indigenous to Mars…”

Huh?

Yes, it’s a question of semantics, of details, of the parsing of the words… and they both meant the same thing, i.e. the science teams found some small indication of organic substances but it is not validated yet- hence the “definitive” jargon. And Grotzinger was certainly clear about his newfound caution when speaking to the press… once burned and so forth.

But…

We are dealing with the beginnings of what could end up being life, or pre-life, or at least simple organics on Mars. Add this to the recent (ca 2011) reinterpretation of the Viking experiments by Chris McKay at NASA’s Ames Research Center, which resulted in that normally-conservative scientist saying, for all to hear, “Contrary to 30 years of perceived wisdom, Viking did detect organic materials on Mars,” and you have a red-hot chili-pepper of an issue.

Monday’s announcement (clarification?) occurred almost two weeks after the initial story, which created a sensation. On November 20th, Joe Palca of NPR was talking with John Grotzinger in the latter’s office. As they chatted, some new findings from Curiosity’s SAM instrument team came in. Grotzinger allegedly said that the results would be “one for the history books…” Palca would appear to be the person who said “Earthshaking,” as an apparent reference to his conversation with Grotzinger. The story went out on NPR and within hours the national press and TV were all over it. The natural assumption, given which instrument was being discussed, was that Curiosity had found organic substances, the precursor to life (it could even be life, but Curiosity cannot definitively prove that). Headlines like “Signs of Life on Mars?” began to appear.

The NASA PR apparatus was slow to respond, then did so haltingly (though the Mars PR team at JPL did their best to address it quickly, but it was too little and too vague). The real problem was that the red-hot question was not really addressed at all. A simple announcement paralleling what was put forth Monday could have been made in one two sentences, quenching the fire. But then, NASA field centers are supposed to coordinate with their managers at NASA’s headquarters in D.C., and this one may have even gone to the deputy administrator level. No wonder it took ten days to get the beginnings of a picture of what was really going on from the agency. But still the statement was vague, prolonging the mystery until Monday AM in San Francisco. And for what? To give the scientists in question a chance to vindicate themselves in person? Or was the delay merely to allow them to present their own findings at the conference? They had plenty to say and show in any case. No, NASA should have said clearly and in brief: we may have found something organic, stay tuned for more details. But instead, they fiddled while their planetary exploration budget burned.

NASA’s PR machine could use a good oiling. They must stop being gun-shy because of the (now ancient history) Mars meteor debacle, when in 1996 it was announced (with Bill Clinton in attendance, no less) that a fossil had been found in a Martian meteorite collected in Antarctica. The theory was rapidly assailed by other scientists, and NASA had to suffer a retraction (though it is still open to debate whether it is a fossil or not). But seventeen years later this incident is largely forgotten; it’s time to move on.

The important takeaway is this: the public is crazy about Mars right now. Curiosity continues to be a stunning success, a mission with no enemies and millions of friends worldwide. It is proceeding flawlessly and generating good science and goodwill for America, something in short supply these days. NASA has a golden opportunity to capitalize on this and finally get the funding that planetary exploration deserves. JPL is at the end of a long money-starved pipeline, and the flow is slowing to a dribble (it’s been shrinking, and still more cuts are on the way next year to the tune of over $300 million).

Whether the agency will step up to the plate and properly seize this priceless moment is an open question. Recent experience is not encouraging. As was once said, “No bucks, no Buck Rogers.” It’s time to demand more for and of our national space agency.

Rod Pyle is the author of numerous books on the space program including Destination Moon, Missions to the Moon as well as 2012’s Destination Mars, and produced Modern Marvels: Apollo 11 for The History Channel.

Source: http://www.huffingtonpost.com

 

 

 

NASA Curiosity Team Pinpoints Site for First Drive On Mars.


The scientists and engineers of NASA’s Curiosity rover mission have selected the first driving destination for their one-ton, six-wheeled mobile Mars laboratory. The target area, named Glenelg, is a natural intersection of three kinds of terrain. The choice was described by Curiosity Principal Investigator John Grotzinger of the California Institute of Technology during a media teleconference on Aug. 17.

“With such a great landing spot in Gale Crater, we literally had every degree of the compass to choose from for our first drive,” Grotzinger said. “We had a bunch of strong contenders. It is the kind of dilemma planetary scientists dream of, but you can only go one place for the first drilling for a rock sample on Mars. That first drilling will be a huge moment in the history of Mars exploration.”

The trek to Glenelg will send the rover 1,300 feet (400 meters) east-southeast of its landing site. One of the three types of terrain intersecting at Glenelg is layered bedrock, which is attractive as the first drilling target.

“We’re about ready to load our new destination into our GPS and head out onto the open road,” Grotzinger said. “Our challenge is there is no GPS on Mars, so we have a roomful of rover-driver engineers providing our turn-by-turn navigation for us.”

Prior to the rover’s trip to Glenelg, the team in charge of Curiosity’s Chemistry and Camera instrument, or ChemCam, is planning to give their mast-mounted, rock-zapping laser and telescope combination a thorough checkout. On Saturday night, Aug. 18, ChemCam is expected to “zap” its first rock in the name of planetary science. It will be the first time such a powerful laser has been used on the surface of another world.

“Rock N165 looks like your typical Mars rock, about three inches wide. It’s about 10 feet away,” said Roger Wiens, principal investigator of the ChemCam instrument from the Los Alamos National Laboratory in New Mexico. “We are going to hit it with 14 millijoules of energy 30 times in 10 seconds. It is not only going to be an excellent test of our system, it should be pretty cool too.”

Mission engineers are devoting more time to planning the first roll of Curiosity. In the coming days, the rover will exercise each of its four steerable (front and back) wheels, turning each of them side-to-side before ending up with each wheel pointing straight ahead. On a later day, the rover will drive forward about one rover-length (10 feet, or 3 meters), turn 90 degrees, and then kick into reverse for about 7 feet (2 meters).

“There will be a lot of important firsts that will be taking place for Curiosity over the next few weeks, but the first motion of its wheels, the first time our roving laboratory on Mars does some actual roving, that will be something special,” said Michael Watkins, mission manager for Curiosity from the Jet Propulsion Laboratory in Pasadena, Calif.

The Mars Science Laboratory spacecraft delivered Curiosity to its target area on Mars at 10:31:45 p.m. PDT on Aug. 5 (1:31:45 a.m. EDT on Aug. 6), which included the 13.8 minutes needed for confirmation of the touchdown to be radioed to Earth at the speed of light.

The audio and visuals of the teleconference are archived and available for viewing at: http://www.ustream.tv/nasajpl

The mission is managed by JPL for NASA’s Science Mission Directorate in Washington. The rover was designed, developed and assembled at JPL, a division of Caltech. ChemCam was provided by Los Alamos National Laboratory. France provided ChemCam’s laser and telescope.

For more information about NASA’s Curiosity mission, visit: http://www.jpl.nasa.gov/msl and http://www.nasa.gov/msl

Source: science daily