The case for past habitability on the Red Planet is bolstered by the discovery of preserved organic compounds revealed today, as they are as old as the around 3.5 billion year old sedimentary rocks in which they were found.
NASA says the findings "suggest the planet could have supported ancient life" and serves as additional evidence dealing with the question concerning any current life on Mars. Still, neither find constitutes evidence of life, as Curiosity team members were careful to stress yesterday; organics and methane can be produced by geological processes, and the origin of the stuff Curiosity observed remains unknown.
Trace amounts of carbon found in the prehistoric rock were 100 times greater than any prior discovery of organic carbon on Mars' surface.
The traces of methane on Mars are tantalizing to biologists eager for evidence of life.
Thomas Zurbuchen, the associate administrator for the ScienceMission Directorate at the space said that with these findings "Mars is telling us to stay the course and keep searching for evidence of life". The changes were observed over three Martian years, which are equivalent to almost half a dozen Earth years. "That doesn't mean life, but organic compounds are the building blocks of life".
Questions remain, however, as to how the organic material was formed. "While we don't know the source of the material, the awesome consistency of the results makes me think we have a slam-dunk signal for organics on Mars", Eigenbrode said. Such reactions could create enough energy to feed microbial life. The problem was that these organic molecules contained an unusual atom: chlorine.
"This is a significant breakthrough because it means there are organic materials preserved in some of the harshest environments on Mars", said lead author of one of two studies in Science, Jennifer Eigenbrode.
Maybe even billions of years - the Gale crater, named after Australian astronomer Walter F. Gale, is up to 3.8 billion years old, and may have once held a lake.
The sediments, analysed by the SAM instrument on Curiosity, come from just below the surface, where they have been shielded from most of the UV radiation that would break down organic molecules exposed on the surface. "Everything that was needed to support life was there". The methane concentrations peak near the end of the northern hemisphere's summer, then dwindle in the winter.
Paul Mahaffy, director of the Solar System Exploration Division at NASA's Goddard Space Flight Center in Greenbelt, Maryland, explained that the objective of the mission was to explore the possibility of sustaining life on Mars.
He and his colleagues think the methane is coming from underground. The livestream should kick off shortly before the press conference is scheduled to begin, and as with all NASA events it will be live streamed so we can all enjoy it from the comfort of our office desks. After the first Mariner missions of the 1960s, even these were ruled out and the hope was that when the Viking landers touched down in 1976, they'd be able to find signs of biological processes.
This team plays great at home, and we expect their other guys to play even better at home, too, not just LeBron. Typical of him and - I know no matter who wins his series, no one wants the invite anyway".
Ogundipe said that residents should be cautious about the use of plastics considering the topography of the state. "Together, let us ensure that our future generations live in a clean and green planet, in harmony with nature".
Even then the Socialists were often sidelined as Podemos, centre-right Ciudadanos and Rajoy's PP took centre stage in politics. But the hard-left party seems unlikely to gain major influence over Sanchez, who is keen to win back centrist voters.
Rudy Giuliani may be part of President Trump's legal team, but some are wondering which side he is actually on. Chris Christie agreed on Sunday, telling "This Week" that there is "no way" Trump will pardon himself .
And then, suddenly, after unleashing one powerful backhand return victor that she punctuated with a shout, Williams was back. Facing three break points in the fourth game of the second set, she served a double fault, allowing Stosur to level at 2-2.
Heidi Heitkamp , a North Dakota Democrat in a tough re-election fight in 2018, said she was "very interested" in the proposal. Bob Corker is facing the ire of the White House after forging ahead with his plan to curtail the President's power on trade.
Gambit is a new, hybrid four-vs-four mode that merges both player vs. enemy and player vs. player experiences into an epic battle. The Digital Deluxe Edition of Forsaken comes with the expansion, the Annual Pass, pre-order bonuses, and the Awoken Legend set.
XFL makes splash in landing Andrew Luck's dad
He will now relocate from Indianapolis to the XFL's headquarters in CT as he prepares for the league's launch in 2020. He said he wants to deliver great football, which he said has been "one of the failings of the original league".
Koch network launches campaign against Trump tariffs
The United States and China seemed to have reached a breakthrough previously, only for that agreement to come quickly undone. A Windsor-based businessman has some advice for our Prime Minister; stop fighting with Americans over tariffs.
North Korea's top military officials replaced
No date has been given for the summit, which would be the first public meeting between Kim and another head of state in Pyongyang. Secretary of State Mike Pompeo, . just three days after their previous discussion last Friday.
Nabil Fekir's Agent Confirms Reds' Interest
Liverpool have already completed one signing this summer, with Fabinho joining from Monaco earlier this week. He told Le Progres: "I did not leave Marseille (this weekend), I am with my family".
Crisis in Italy Causes Stocks to Fall
ASIA'S DAY: Japan's Nikkei 225 fell 0.6 percent to finish at 22,358.43 while South Korea's Kospi lost 0.9 percent to 2,457.25. The Italian and Spanish stock markets suffered the worst, with stock market drops in the 2.5 percent range.