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Life on Mars remains distant dream as Curiosity fails to detect methane

September 20, 2013 By Janet Vasquez Leave a Comment

In a setback to all those who are hoping life on Mars, NASA’s new report suggests that no living condition is likely on the red planet as its Curiosity rover has revealed no trace of methane, a potential sign of life, on the Martian surface.

Whether the Martian atmosphere contains traces of the gas has been a question of high interest for years because methane could be a potential sign of life, although it also can be produced without biology.

The report came as a surprise to the global researchers because previous data reported by US and international scientists indicated positive detections of methane.

The roving laboratory performed extensive tests to search for traces of Martian methane. “This important result will help direct our efforts to examine the possibility of life on Mars,” said Michael Meyer, NASA’s lead scientist for Mars exploration.

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“It reduces the probability of current methane-producing Martian microbes, but this addresses only one type of microbial metabolism. As we know, there are many types of terrestrial microbes that don’t generate methane,” said Meyer.

Scientists say, Curiosity analysed samples of the Mars atmosphere for methane six times from October 2012 through June and detected none.

“We measured repeatedly from Martian spring to late summer, but with no detection of methane,” said Webster.

Filed Under: Lifestyle Tagged With: curiosity, life on Mars, Mars, Mars rover, NASA, Red planet

NASA selects four sites for its Mars mission in 2016

September 5, 2013 By Janet Vasquez Leave a Comment

Gearing up for its ambitious Mars mission in 2016, NASA has narrowed down to four potential landing sites with an aim at studying the red planet’s interior.

The mission will touch down at one of the four sites selected in August from a field of 22 candidates.

Briefing about the selected sites, NASA said, “All four semi-finalist spots lie near each other on an equatorial plain in an area of Mars called Elysium Planitia.

“We picked four sites that look safest. They have mostly smooth terrain, few rocks and very little slope,” said geologist Matt Golombek of NASA’s Jet Propulsion Laboratory in Pasadena, California.

Unlike previous Mars landings, what is on the surface in the area matters little in the choice of a site except for safety considerations.

Each semifinalist site is an ellipse measuring 130 kilometres from east to west and 27 kilometres from north to south.

Engineers calculate the spacecraft will have a 99-percent chance of landing within that ellipse, if targeted for the center.

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The stationary Interior Exploration Using Seismic Investigations, Geodesy and Heat Transport (InSight) lander is scheduled to launch in March 2016 and land on Mars six months later.

Elaborating upon the next move, NASA said, “We will focus two Mars Reconnaissance Orbiter cameras on the semi-finalists in the coming months to gain data. These data will be used to select the best of the four sites well before InSight is launched.

What is 2016 Mars Mission?

NASA’s Mars mission aims at investigating the processes that formed and shaped Mars and will help scientists better understand the evolution of our inner solar system’s rocky planets, including Earth.

“This mission’s science goals are not related to any specific location on Mars because we’re studying the planet as a whole, down to its core,” said Bruce Banerdt, InSight principal investigator at JPL.

“Mission safety and survival are what drive our criteria for a landing site,” said Banerdt.

Filed Under: Lifestyle Tagged With: 2016 Mars mission, life on Mars, Mars, NASA, NASA Mars mission

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