Mars Might Just Be Habitable, Data From NASA Rover Shows
Mars Might Just Be Habitable, Data From NASA Rover Shows
New Mars discoveries advance case for possible life
08 June, 2018, 02:18
That leaves open the possibility that microorganisms once populated our planetary neighbour and still might. What the study has done, though, is to propel the search for life on Mars higher up the list of global space exploration priorities - giving space agencies ammunition to argue for a coordinated programme of missions to explore the Red Planet.
On top of that, after keeping close tabs on methane levels in the Martian atmosphere, scientists have finally confirmed something weird is definitely going on, and they think they know what's causing it.
"With this new data, we again can not rule out microbial activity as a potential source", Webster said. The crystals may have obtained methane from ancient forms of life.
Curiosity's methane measurements occurred over four-and-a-half Earth years, covering parts of three Martian years.
"The seasonal methane peaks in the summer of the Martian northern hemisphere so the source has to be affected by those increasing temperatures from greater sunlight", astrophysicist Alan Duffy from Swinburne University in Australia told ScienceAlert.
"This is the first time we've seen something repeatable in the methane story, so it offers us a handle in understanding it", Chris Webster of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, said.
"Not only have we got this wonderful repeatability, but the seasonal cycle changes by a factor of three". "It's tripling ... that's a huge, huge difference".
NASA's Curiosity Rover has explored the surface of Mars for five years, and has recently resumed drilling into rocks on the surface. The diameter is slightly smaller than a USA dime. The Viking Project was the first United States mission to safely land spacecraft on the Martian surface, as well as send back images. They could even have been transported from elsewhere in the solar system. The key samples in the latest findings came from a spot 6.4 kilometres away.
The team also found several spikes where methane abundance suddenly jumped to be higher than average during the year.
Launched in 2011, Curiosity was created to assess whether Mars ever had an environment able to support small life forms called microbes.
"The unbelievable consistency of the results makes me think we have a slam-dunk signal for organics on Mars".
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Today would have been Prince's 60th birthday, and the late musician's estate is celebrating by announcing a new posthumous album. Piano & A Microphone 1983's physicals (CD, LP) and digital versions are available for pre-order here.
The study was funded by the National Cancer Institute, some foundations and proceeds from the USA breast cancer postage stamp. The extra 6 cents went for research - 70 percent to the Cancer Institute and 30 percent to the Department of Defense.
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