Old Drunks 1 – Video

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Old Drunks 1
This hilarious new comedy pilot will screen one night only. Don #39;t miss it! Monday 17th December, 9:30 SBS TV Created by Bryan Moses and James De Leo Episode 1 (Pilot): Discrimination What do Neanderthals and Julia Gillard have in common? What do ancient cave paintings tell us about recent pub closures? How has Craig McLachlan helped make Australian society stronger? The Arecibo Message probes deep inside humanity with a comical look at 21st century life and culture. It #700;s a comedy documentary series about the people of Earth, for the people of Earth...and beyond. The series follows author, historian and scientist Dr Percival Sauvge (played by comedian James De Leo) around the globe, as he brings us a tele-visual tour of the human experience. Written by the sharpest minds in Australian comedy, The Arecibo Message is a comedic time capsule for the 21st century. With it #700;s razor sharp wit, cutting edge computer graphics, and guest appearances, The Arecibo Message will surprise terrestrial and extra-terrestrial viewers alike. This episode of The Arecibo Message looks at the worst forms of discrimination today: gentrification, the tall poppy syndrome, and intolerance of red heads. Host Dr Percival Sauvge will delve deep into this murky topic and discover whether discrimination really is all bad.From:TheAreciboMessageTVViews:3 0ratingsTime:00:27More inComedy

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Redhead Extinction – Video

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Redhead Extinction
This hilarious new comedy pilot will screen one night only. Don #39;t miss it! Monday 17th December, 9:30 SBS TV Created by Bryan Moses and James De Leo Episode 1 (Pilot): Discrimination What do Neanderthals and Julia Gillard have in common? What do ancient cave paintings tell us about recent pub closures? How has Craig McLachlan helped make Australian society stronger? The Arecibo Message probes deep inside humanity with a comical look at 21st century life and culture. It #700;s a comedy documentary series about the people of Earth, for the people of Earth...and beyond. The series follows author, historian and scientist Dr Percival Sauvge (played by comedian James De Leo) around the globe, as he brings us a tele-visual tour of the human experience. Written by the sharpest minds in Australian comedy, The Arecibo Message is a comedic time capsule for the 21st century. With it #700;s razor sharp wit, cutting edge computer graphics, and guest appearances, The Arecibo Message will surprise terrestrial and extra-terrestrial viewers alike. This episode of The Arecibo Message looks at the worst forms of discrimination today: gentrification, the tall poppy syndrome, and intolerance of red heads. Host Dr Percival Sauvge will delve deep into this murky topic and discover whether discrimination really is all bad.From:TheAreciboMessageTVViews:0 0ratingsTime:00:23More inComedy

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Redhead Extinction - Video

Old Drunks 2 – Video

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Old Drunks 2
This hilarious new comedy pilot will screen one night only. Don #39;t miss it! Monday 17th December, 9:30 SBS TV Created by Bryan Moses and James De Leo Episode 1 (Pilot): Discrimination What do Neanderthals and Julia Gillard have in common? What do ancient cave paintings tell us about recent pub closures? How has Craig McLachlan helped make Australian society stronger? The Arecibo Message probes deep inside humanity with a comical look at 21st century life and culture. It #700;s a comedy documentary series about the people of Earth, for the people of Earth...and beyond. The series follows author, historian and scientist Dr Percival Sauvge (played by comedian James De Leo) around the globe, as he brings us a tele-visual tour of the human experience. Written by the sharpest minds in Australian comedy, The Arecibo Message is a comedic time capsule for the 21st century. With it #700;s razor sharp wit, cutting edge computer graphics, and guest appearances, The Arecibo Message will surprise terrestrial and extra-terrestrial viewers alike. This episode of The Arecibo Message looks at the worst forms of discrimination today: gentrification, the tall poppy syndrome, and intolerance of red heads. Host Dr Percival Sauvge will delve deep into this murky topic and discover whether discrimination really is all bad.From:TheAreciboMessageTVViews:0 0ratingsTime:00:22More inComedy

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Old Drunks 2 - Video

Neanderthals – Video

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Neanderthals
This hilarious new comedy pilot will screen one night only. Don #39;t miss it! Monday 17th December, 9:30 SBS TV Created by Bryan Moses and James De Leo Episode 1 (Pilot): Discrimination What do Neanderthals and Julia Gillard have in common? What do ancient cave paintings tell us about recent pub closures? How has Craig McLachlan helped make Australian society stronger? The Arecibo Message probes deep inside humanity with a comical look at 21st century life and culture. It #700;s a comedy documentary series about the people of Earth, for the people of Earth...and beyond. The series follows author, historian and scientist Dr Percival Sauvge (played by comedian James De Leo) around the globe, as he brings us a tele-visual tour of the human experience. Written by the sharpest minds in Australian comedy, The Arecibo Message is a comedic time capsule for the 21st century. With it #700;s razor sharp wit, cutting edge computer graphics, and guest appearances, The Arecibo Message will surprise terrestrial and extra-terrestrial viewers alike. This episode of The Arecibo Message looks at the worst forms of discrimination today: gentrification, the tall poppy syndrome, and intolerance of red heads. Host Dr Percival Sauvge will delve deep into this murky topic and discover whether discrimination really is all bad.From:TheAreciboMessageTVViews:0 0ratingsTime:00:26More inComedy

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Neanderthals - Video

How To Watch Live NASA Space Footage In Google Chrome – Video

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How To Watch Live NASA Space Footage In Google Chrome
I do a review of a pretty cool app for Google Chrome that lets you watch live footage from the international space station as it orbits the Earth. Sometimes, you can even listen to the radio transmissions that the station sends to the Earth. Here is the link to download the Google Chrome App: chrome.google.com Here is the link to try pasting into your web browser if you do not use Google Chrome (they might have the app for Firefox but not sure.) http://www.tvopedia.com NASA international space station google chrome live space footage watch live space footage online watch space footage in web browser NASA TV NASA TV - ISSFrom:wassup2190Views:0 0ratingsTime:03:54More inScience Technology

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How To Watch Live NASA Space Footage In Google Chrome - Video

Having Fun with Ravi 1 – Video

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Having Fun with Ravi 1
Chuckwalla Raceway with NASA-AZ on December 1 2, 2012. Love chasing Ravi around... You can hear the beginning my front rotor cracking and start to become uneven through the caliper as I started losing front braking capacity.From:Jim CozzolinoViews:0 0ratingsTime:08:40More inAutos Vehicles

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Having Fun with Ravi 1 - Video

The ‘X’ Chronicles Newspaper – November 2012 End of the World Special – Video

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The #39;X #39; Chronicles Newspaper - November 2012 End of the World Special
In This Edition of The #39;X #39; Chronicles Newspaper NOVEMBER 2012 - 50 Pages These are just SOME of the stories and articles in this edition of THE #39;X #39; CHRONICLES NEWSPAPER Page 01: Radio Broadcast of the Century Page 03: 2012 Mayan Apocalypse Has Dark Side - NASA Page 04: Doomsday Preppers Herald End of World Page 05: LA Survival Group Braces for Dec 21 2012 Page 06: Dates Throughout History that Predicted Apocalyptic Events Page 13: Will the World Really End on Dec 21 2012? Page 18: Mayan Apocalypse Poses Threat to Children Page 19: Why Do People Believe in the 2012 Doomsday? Page 20: Terence McKenna #39;s Magical 2012 Page 21: 7 Reasons Why The World Will Not End on Dec 21 2012 Page 24: Super-comet or Super-dud? Page 25:10 Facts Surrounding Comet Elenin Page 26: Remembrance Day - Nov 11 2012 Page 28: Explaining December 21 2012 to a Child Page 30: Debunking the End of the World Myth Page 31: The Maya Culture Page 35: Top 10 Fascinating Mayan Facts Page 38: Scotiabank Recognizes World AIDS Day Page 40: The Rise and Fall of the Maya Empire Page 41: Theatre of the Mind Page 42: Invited to the Wedding or a Blessed Photograph? Page 43: The #39;X #39; Zone LIVE 26 Hour Broadcast Ushering in Dec 21 2012 Page 45: UFOs In The News Page 46: UFO Sightings Across the US Decreases Page 48: NASA Downplays Rumors of a Discovery on Mars Page 50: The Gathering of the Forces of LightFrom:Rob McConnellViews:0 0ratingsTime:01:43More inEntertainment

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The 'X' Chronicles Newspaper - November 2012 End of the World Special - Video

NASA set to make announcement about Mars mission

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CTVNews.ca Staff Published Monday, Dec. 3, 2012 10:47AM EST Last Updated Monday, Dec. 3, 2012 2:35PM EST

The Mars Curiosity rover has analyzed samples of Martian soil for the first time and found compounds of water, sulfur and chlorine-containing substances, NASA said Monday, providing a more grounded update of the planets exploration after weeks of speculation and rumours.

The team stressed that while the rovers tools had detected organic compounds, it had not yet determined if the compounds were of Martian origin.

We have no definitive detection of Martian organics at this point, but we will keep looking in the diverse environments of Gale Crater," said team member Paul Mahaffy.

Members of the space agencys Curiosity team made the announcement during a meeting of the American Geophysical Union in San Francisco.

The samples were collected from the Rocknest region by Curiositys arm and brought inside the rover to an analytical laboratory.

After the samples were collected, they were heated in a tiny oven. As gases were released, the Sample Analysis at Mars suite analyzed the substances and checked for organic compounds carbon-containing chemicals that can be ingredients of life.

The rovers detection of the compounds is a sign that the rover and all its tools are working well, said John Grotzinger, the lead scientist on the team.

The instrument SAM is working perfectly well it has made this detection of organic compounds, simple organic compounds; we just simply dont know if theyre indigenous to Mars or not, he said. Its going to take some time to work through that.

What weve got is a globally representative material on Mars that turns out to be a rich repository of environmental process and history.

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NASA set to make announcement about Mars mission

NASA’s Curiosity rover finds whiff of possible life on Mars

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Washington, Dec 4:

NASAs Mars rover Curiosity has found tantalising clues that life may have once existed on the Red planet, but scientists said it was too early to make much of the first soil analyses.

Scientists found traces of carbon in several compounds detected by the rovers Sample Analysis at Mars instrument.

They, however, do not yet know if the carbon a key building block for life is contamination from Earth, was delivered to Mars by organicsrich asteroids, or arose on Mars itself.

The carbon, if indigenous, could be an indicator of geologic or biological activity, the Discovery News reported.

Were not really sure of where it comes from right now, the missions lead scientist John Grotzinger said during the American Geophysical Union conference in San Francisco.

Just finding carbon somewhere doesnt mean that it has anything to do with life, or the finding of a habitable environment, he said.

Life, as we know, needs three basic ingredients to evolve water, a energy source and carbon. Other building blocks include sulphur, oxygen, phosphorous and nitrogen.

Curiosity, which is four months into a planned two-year mission on Mars, already has turned up evidence that its landing spot on the floor Gale Crater, was once covered in water, the report said.

Minerals in the soil analysis also show a history of chemical interaction with water. Curiosity contains an on-board chemistry laboratory to find possible ingredients for microbial life, the environments that could have supported it and places where life could have been preserved.

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NASA’s Curiosity rover finds whiff of possible life on Mars

NASA Mars Rover Fully Analyzes First Martian Soil Samples

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NASA's Mars Curiosity rover has used its full array of instruments to analyze Martian soil for the first time, and found a complex chemistry within the Martian soil. Water and sulfur and chlorine-containing substances, among other ingredients, showed up in samples Curiosity's arm delivered to an analytical laboratory inside the rover.

Detection of the substances during this early phase of the mission demonstrates the laboratory's capability to analyze diverse soil and rock samples over the next two years. Scientists also have been verifying the capabilities of the rover's instruments.

Curiosity is the first Mars rover able to scoop soil into analytical instruments. The specific soil sample came from a drift of windblown dust and sand called "Rocknest." The site lies in a relatively flat part of Gale Crater still miles away from the rover's main destination on the slope of a mountain called Mount Sharp. The rover's laboratory includes the Sample Analysis at Mars (SAM) suite and the Chemistry and Mineralogy (CheMin) instrument. SAM used three methods to analyze gases given off from the dusty sand when it was heated in a tiny oven. One class of substances SAM checks for is organic compounds -- carbon-containing chemicals that can be ingredients for life.

"We have no definitive detection of Martian organics at this point, but we will keep looking in the diverse environments of Gale Crater," said SAM Principal Investigator Paul Mahaffy of NASA's Goddard Space Flight Center in Greenbelt, Md.

Curiosity's APXS instrument and the Mars Hand Lens Imager (MAHLI) camera on the rover's arm confirmed Rocknest has chemical-element composition and textural appearance similar to sites visited by earlier NASA Mars rovers Pathfinder, Spirit and Opportunity.

Curiosity's team selected Rocknest as the first scooping site because it has fine sand particles suited for scrubbing interior surfaces of the arm's sample-handling chambers. Sand was vibrated inside the chambers to remove residue from Earth. MAHLI close-up images of Rocknest show a dust-coated crust one or two sand grains thick, covering dark, finer sand.

"Active drifts on Mars look darker on the surface," said MAHLI Principal Investigator Ken Edgett, of Malin Space Science Systems in San Diego."This is an older drift that has had time to be inactive, letting the crust form and dust accumulate on it."

CheMin's examination of Rocknest samples found the composition is about half common volcanic minerals and half non-crystalline materials such as glass. SAM added information about ingredients present in much lower concentrations and about ratios of isotopes. Isotopes are different forms of the same element and can provide clues about environmental changes. The water seen by SAM does not mean the drift was wet. Water molecules bound to grains of sand or dust are not unusual, but the quantity seen was higher than anticipated.

SAM tentatively identified the oxygen and chlorine compound perchlorate. This is a reactive chemical previously found in arctic Martian soil by NASA's Phoenix Lander. Reactions with other chemicals heated in SAM formed chlorinated methane compounds -- one-carbon organics that were detected by the instrument. The chlorine is of Martian origin, but it is possible the carbon may be of Earth origin, carried by Curiosity and detected by SAM's high sensitivity design.

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NASA Mars Rover Fully Analyzes First Martian Soil Samples

NASA Voyager 1 encounters new region in deep space

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ScienceDaily (Dec. 3, 2012) NASA's Voyager 1 spacecraft has entered a new region at the far reaches of our solar system that scientists feel is the final area the spacecraft has to cross before reaching interstellar space.

Scientists refer to this new region as a magnetic highway for charged particles because our sun's magnetic field lines are connected to interstellar magnetic field lines. This connection allows lower-energy charged particles that originate from inside our heliosphere -- or the bubble of charged particles the sun blows around itself -- to zoom out and allows higher-energy particles from outside to stream in. Before entering this region, the charged particles bounced around in all directions, as if trapped on local roads inside the heliosphere.

The Voyager team infers this region is still inside our solar bubble because the direction of the magnetic field lines has not changed. The direction of these magnetic field lines is predicted to change when Voyager breaks through to interstellar space. The new results were described at the American Geophysical Union meeting in San Francisco on Monday.

"Although Voyager 1 still is inside the sun's environment, we now can taste what it's like on the outside because the particles are zipping in and out on this magnetic highway," said Edward Stone, Voyager project scientist based at the California Institute of Technology, Pasadena. "We believe this is the last leg of our journey to interstellar space. Our best guess is it's likely just a few months to a couple years away. The new region isn't what we expected, but we've come to expect the unexpected from Voyager."

Since December 2004, when Voyager 1 crossed a point in space called the termination shock, the spacecraft has been exploring the heliosphere's outer layer, called the heliosheath. In this region, the stream of charged particles from the sun, known as the solar wind, abruptly slowed down from supersonic speeds and became turbulent. Voyager 1's environment was consistent for about five and a half years. The spacecraft then detected that the outward speed of the solar wind slowed to zero.

The intensity of the magnetic field also began to increase at that time.

Voyager data from two onboard instruments that measure charged particles showed the spacecraft first entered this magnetic highway region on July 28, 2012. The region ebbed away and flowed toward Voyager 1 several times. The spacecraft entered the region again Aug. 25 and the environment has been stable since.

"If we were judging by the charged particle data alone, I would have thought we were outside the heliosphere," said Stamatios Krimigis, principal investigator of the low-energy charged particle instrument, based at the Johns Hopkins Applied Physics Laboratory, Laurel, Md. "But we need to look at what all the instruments are telling us and only time will tell whether our interpretations about this frontier are correct."

Spacecraft data revealed the magnetic field became stronger each time Voyager entered the highway region; however, the direction of the magnetic field lines did not change.

"We are in a magnetic region unlike any we've been in before -- about 10 times more intense than before the termination shock -- but the magnetic field data show no indication we're in interstellar space," said Leonard Burlaga, a Voyager magnetometer team member based at NASA's Goddard Space Flight Center in Greenbelt, Md. "The magnetic field data turned out to be the key to pinpointing when we crossed the termination shock. And we expect these data will tell us when we first reach interstellar space."

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NASA Voyager 1 encounters new region in deep space

NASA Scientists 'Very Careful' With New Mars Data

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This photo, taken by NASA's Curiosity rover, shows Mars' Gale Crater, where the rover has taken samples for chemical analysis. Scientists believe that at some point in the very distant past, there was a riverbed here.

This photo, taken by NASA's Curiosity rover, shows Mars' Gale Crater, where the rover has taken samples for chemical analysis. Scientists believe that at some point in the very distant past, there was a riverbed here.

NASA is finally receiving data on Martian soil samples from Curiosity, its rover currently traversing the red planet. The results from the soil samples hint at something exciting, but rover scientists are making very sure not to raise expectations.

NASA had always planned to present early results from the mission this week at a press conference. But expectations for the press conference soared after one of the instruments onboard the rover appeared to detect organic molecules.

Having already found signs of water on Mars, finding signs of organic material would be another piece of evidence that there might might, might have once been life on Mars.

Paul Mahaffy, the lead scientist on Curiosity's main analysis instrument, known as the Sample Analysis at Mars, or SAM, device, says no news yet.

"SAM has no definitive detection to report of organic compounds with these first set of experiments," he told a meeting of the American Geophysical Union in San Francisco on Monday.

Mahaffy says SAM definitely saw simple organic compounds compounds made of carbon when it analyzed its first soil sample last month. It also saw compounds made with chlorine.

"The reason we're saying we have no definitive detection of Martian organics," Mahaffy says, "is that we have to be very careful to make sure both the carbon and the chlorine are coming from Mars."

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NASA Scientists 'Very Careful' With New Mars Data

NASA: December 21 theory an 'internet hoax'

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NASA says December 21 this year is just the winter solstice not the end of the world.

According to believers, the world will undergo a major transformation later this month, as the ancient Mayan Long Count calender comes to the end of its 13th cycle. Some say it will be the end of the world, perhaps via a collision with another planet or a black hole, while others claim there will be some kind of spiritual awakening, the effects of which depend on who you ask.

But according to NASA, there is nothing special about December 21, 2012, and there's definitely nothing to worry about.

In a post on their website, NASA says the planet has been "getting along just fine for more than 4 billion years, and credible scientists worldwide know of no threat associated with 2012".

"Just as the calendar you have on your kitchen wall does not cease to exist after December 31, the Mayan calendar does not cease to exist on December 21, 2012. This date is the end of the Mayan long-count period but then - just as your calendar begins again on January 1 - another long-count period begins for the Mayan calendar."

NASA says claims that a planet named 'Nibiru' or 'Planet X' will hit the Earth, like in the Lars von Trier film Melancholia, are an "internet hoax".

"If Nibiru or Planet X were real and headed for an encounter with the Earth in 2012, astronomers would have been tracking it for at least the past decade, and it would be visible by now to the naked eye."

Another planet mentioned in conspiracy circles is Eris, which although real, never comes closer than 6 billion kilometres away.

Some say Earth's rotation will reverse, but NASA says this is impossible.

"There are slow movements of the continents (for example Antarctica was near the equator hundreds of millions of years ago), but that is irrelevant to claims of reversal of the rotational poles."

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NASA: December 21 theory an 'internet hoax'

NASA's Voyager 1 hits a 'magnetic highway' out of the solar system

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Scientists at NASA say the unmanned Voyager 1 spacecraft has reached the edges of the solar system. They estimate in a few months to a year Voyager 1 will become the first manmade object to leave the solar system and enter interstellar space.

NASA's long-livedVoyager1 spacecraft, which is heading out of the solar system, has reached a "magnetic highway" leading to interstellar space, scientists said on Monday.

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The probe, launched 35 years ago to study the outer planets, is now about 11 billion miles from Earth. At that distance, it takes radio signals traveling at the speed of light 17 hours to reach Earth. Light moves at 186,000 miles per second.

Voyager1 will be the first manmade object to leave the solar system.

Scientists believeVoyager1 is in an area where the magnetic field lines from the sun are connecting with magnetic field lines from interstellar space. The phenomenon is causing highly energetic particles from distant supernova explosions and other cosmic events to zoom inside the solar system, while less-energetic solar particles exit.

"It's like a highway, letting particles in and out," leadVoyagerscientistEd Stonetold reporters at an American Geophysical Union conference inSan Francisco.

Scientists don't know how long it will take for the probe to cross the so-called "magnetic highway," but they believe it is the last layer of a complex boundary between the region of space under the sun's influence and interstellar space.

"Our best guess is it's likely just a few months to a couple years away," Stone said.

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NASA's Voyager 1 hits a 'magnetic highway' out of the solar system

NASA to Unveil Mars Rover Curiosity Findings Monday

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NASA will discuss the latest Red Planet activities of its Mars rover Curiosity on Monday (Dec. 3), but space geeks shouldn't get their hopes up for a bombshell announcement.

Despite rampant rumors to the contrary, Monday's press conference held at 12:00 p.m. EST (1700 GMT) during the fall meeting of the American Geophysical Union in San Francisco won't present any earth-shaking results that force humanity to rethink its place in the universe, NASA officials said.

"Rumors and speculation that there are major new findings from the mission at this early stage are incorrect," officials at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., which manages Curiosity's mission, wrote in an update Thursday (Nov. 29). "The news conference will be an update about first use of the rover's full array of analytical instruments to investigate a drift of sandy soil."

Rumors of a big Curiosity discovery began swirling two weeks ago, after an NPR story quoted mission chief scientist John Grotzinger as saying that the rover's Sample Analysis at Mars instrument, or SAM, had recently gathered data "for the history books." [Latest Photos from Curiosity Rover]

Because SAM can identify organic compounds the carbon-containing building blocks of life as we know it many people speculated that the car-size robot had discovered complex organics in a Martian soil sample.

But that's not the case, JPL officials say.

"At this point in the mission, the instruments on the rover have not detected any definitive evidence of Martian organics," they wrote in Thursday's update.

NASA's attempts to rein in such rumors and set reasonable expectations for Monday's press conference began with some thoughts from Curiosity itself on Nov. 21 (via the rover's JPL-run Twitter account, @MarsCuriosity).

"What did I discover on Mars? That rumors spread fast online. My team considers this whole mission 'one for the history books,'" Curiosity wrote in a Twitter post that day.

The $2.5 billion Curiosity rover landed Aug. 5 inside the Red Planet's huge Gale Crater, kicking off a two-year prime mission to determine if Mars has ever been able to support microbial life.

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NASA to Unveil Mars Rover Curiosity Findings Monday

NASA's Mars rover finds traces of carbon – one essential for life

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SAN FRANCISCO (Reuters) - NASA's Mars rover Curiosity, dispatched to look for the chemical ingredients and environments for microbial life, has found hints of carbon, though whether this building block for life on Earth has played a similar role on Mars is unknown, scientists said on Monday.

"Just finding carbon somewhere doesn't mean that it has anything to do with life, or the finding of a habitable environment," lead scientist John Grotzinger, with the California Institute of Technology, told reporters at the American Geophysical Union conference in San Francisco.

"If you have organic carbon and you don't have any water, you don't have a habitable environment," he said.

Even with carbon and water, life needs other chemicals, such as sulfur, oxygen, phosphorous and nitrogen, to form and evolve.

"It's not unexpected that this sand pile would not be rich in organics. It's been exposed to the harsh Martian environment," added planetary scientist Paul Mahaffy, with NASA's Goddard Space Flight Center in Greenbelt, Maryland.

"It's really going to be an exciting hunt over the course of this mission to find early environments that might be protected from this surface Mars environment and see what we can add to the carbon story," Mahaffy said.

The rover, which in August touched down on the floor of a 93-mile wide (150-km) impact crater near the Martian equator, has already turned up evidence that its landing site was once covered in water.

Scientists do not know if the carbon compounds in the soil are contamination from Earth, arrived on the surface of Mars via comets or asteroids, or, if they are indigenous, whether they came from geological or biological activities on Mars.

"It tells us that we have a lead into a measurement of one of the important ingredients that adds to a habitable environment," Grotzinger said. "We still have a lot of work to do to qualify and characterize what it is."

The rover is expected to reach a richer slice of Martian history next year when it begins examining layers of sediment in a mountain rising from the floor of the crater.

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NASA's Mars rover finds traces of carbon - one essential for life