giftedviz.com
giftedviz.com October 23, 2018


NASA Finds Concentrated Batch Of Organic Molecules On Mars

08 June 2018, 09:28 | Ross Houston

NASA Finds Concentrated Batch Of Organic Molecules On Mars

Mars Curiosity rover selfie

NASA will use both these discoveries to inform the design of its upcoming Mars 2020 rover.

"The closer we look, the more we see that Mars is a complex, dynamic planet that - particularly early in its history - was more conducive to life than we might have previously imagined", said Williford, who was not involved in either study. This new discovery of old organics strengthens that possibility and offers new insights into how things preserve in Mars rock, Grinspoon says.

Nasa's Curiosity rover has discovered organic matter on Mars, the agency has announced in a press conference.

The Curiosity rover has lasted three times as long as it was meant to and is still going, which helped with the study of seasonal methane cycles.

The facility is hosting 10 university teams Thursday for an exercise on extracting water from simulated Martian subsurface ice.

"What we have detected is what we would expect from a sample from an ancient lake environment on Earth", said Eigenbrode, of NASA's Goddard Space Flight Center.

NASA's Curiosity rover has uncovered organic material in an ancient lakebed and confirmed a seasonal cycle of methane - offering the strongest evidence yet of potential life, past or even present, on the Red Planet.

It should take methane several hundred years to break apart in the presence of UV light, but that's not what happened on Mars. Methane is quickly broken down by radiation, so it must be replenished by some source on the planet.

Methane, the simplest organic molecule, ranges "between 0.24 to 0.65 parts per billion, peaking near the end of summer in the Northern hemisphere", said the report, based on three years of data.

NTSB releases preliminary findings on March's fatal Tesla Model X crash
The investigation is ongoing and could lead to the NTSB issuing new safety recommendations aimed at preventing similar accidents. In January, a Tesla Model S that may have been on autopilot hit a parked firetruck on Interstate 405 near Los Angeles.


Stanley Cup Final Odds: Latest Spread and Best Bets For Game 5
The Capitals soared to victory on the strength of two third-period goals after they went down 3-2 on Smith's goal in the second. Nicklas Backstrom hit Ovechkin just in front of his usual left-circle spot for a one-timer to make it 2-1.


Antoine Griezmann puts Premier League suitors on alert
The Barcelona man told Mundo Deportivo he hoped Real Madrid's pursuit of Paris Saint Germain striker Neymar would come to nothing. Last season, manager Ernesto Valverde rarely fielded Messi, Ousmane Dembele, Philippe Coutinho and Luis Suarez in same side.


And the seasonal methane pulse is perhaps, maybe, possibly - but far, far from certainly - the sort of signal Curiosity might detect if life did form back then and was still around somewhere, ten Kate said. "The long duration has allowed us to see the patterns in this seasonal 'breathing'".

Q: What could be the possible sources for these organic molecules, biological or otherwise? "Biological, geological and meteoritic sources are all possible", they wrote. Yet when NASA's twin Viking probes landed on Mars in 1976, their studies suggested something startling: Martian soil, it seemed, contained less carbon than lifeless lunar rocks.

These might explain the increase in molecules, but they do still leave its rapid vanishing act wanting of an explanation.

This work was funded by NASA's Mars Exploration Program for the agency's Science Mission Directorate (SMD) in Washington. About 95 percent of the methane in Earth's atmosphere is produced from biological activity, though the scientists said it is too soon to know if the Martian methane also is related to life.

Previous research has suggested the temperatures required could be found at the poles in their respective winter seasons. The crystals may have obtained methane from ancient forms of life. Only a few of the organic molecules, sulfur-bearing carbon rings called thiophenes, were abundant enough to be detected directly, Eigenbrode says.

He and his colleagues think the methane is coming from underground.

So, just where did the methane come from in the first place?

That may be because numerous compounds, such as thiophene, methanethiol and dimethyl sulfide, had sulfur atoms in their molecular structure - which would strengthen the relatively fragile organic molecules, allowing them to survive the radiation bombarding the planet's surface for so long.



Other News

Trending Now

State Department sends personnel for screenings in USA after China acoustic incident
In response, it downsized the USA diplomatic staff in Havana and prohibited families from joining the diplomats who stayed. One path would be for the United States to suggest that the two countries conduct a joint investigation, they added.

Kate Spade’s Brother Earl Brosnahan Asks for Family Privacy
Andy, 55, revealed in a statement on Wednesday, June 6, that his wife of 24 years had battled depression and anxiety for years. A housekeeper discovered her body in her bedroom.

Dynasty's doorstep: Durant, Warriors take 3-0 lead in NBA Finals
The Golden State Warriors are averaging 110.6 points on 48.1 percent shooting and allowing 101.2 points on 42.7 percent shooting. Similarly, his rebounding totals take a slight dip at home: 8.3 per game at Quicken Loans Arena compared to 9.8 on the road.

BlackBerry KEY² Launches With More Powerful Specs, Dual Cameras & An Improved Design
Based on leaks, BlackBerry Key2 is not going to look too different from the original KeyOne which was launched in 2017. There's also a new button called the Speed Key , which acts as a shortcut button to quickly switch between apps.

Simona Halep sweeps aside Garbine Muguruza to reach French Open final
The women got their matches done before rain arrived at Roland Garros , leaving the men's quarterfinals suspended in progress. The other match, featuring Angelique Kerber and Simona Halep , went to a third after the Romanian had a scrappy start.

Dutch queen's sister found dead at home
She had also worked for the social development ministry in Buenos Aires province and at a United Nations office in Panama. It is intensely sad and heartbreaking news that can hardly be comprehended by those who stay behind.

Paul Ryan contradicts Trump's claim that FBI planted a 'spy'
The statement specifically notes certain questions raised by Speaker Ryan, but does not disclose what these questions were. The FBI was looking into Russian interference in the U.S. election and that line of inquiry led them to Trump, he said.

Texas man bitten by severed rattlesnake head
He was eventually airlifted to Christus Spohn Shoreline Hospital, she said. "He had to rip the snake's head off", Jennifer said". The bite came just a week after a kayaker in SC was hospitalized after a rattlesnake attacked him after falling from a tree.

Pubs remove Saudi flag from World Cup bunting
Hosts Russia were placed in Group A with teams from Saudi Arabia , Egypt and Uruguay . However, some other experts express the opposite opinion.

Stoke boss Rowett warns Liverpool, Spurs: Shaqiri won't come cheap
Shaqiri has admitted he would like to stay in the Premier League and a release clause of around £12m makes him a tempting target. Liverpool are among the Premier League clubs interested in signing Xherdan Shaqiri following Stoke City's relegation.