NASA Says Hold Off On 'Life On Mars!' Reports | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 03.30.15

Airborne 03.31.15

Airborne 04.01.15

Airborne 03.26.15

Airborne 03.27.15

Airborne Hi-Def On YouTube

Airborne 03.30.15

Airborne 03.31.15

Airborne 04.01.15

Airborne 03.26.15

Airborne 03.27.15

 

Mon, Aug 04, 2008

NASA Says Hold Off On 'Life On Mars!' Reports

Phoenix Still Analyzing Martian Soil Data

Despite reports last week by a noted aerospace trade journal -- suggesting NASA was very close to revealing that findings from the Phoenix Mars Lander indicated ideal conditions to support carbon-based life -- on Monday the agency said while the final verdict is still out, no one should hold their breath for such an announcement.

Instead, NASA says its scientists are still analyzing results from soil samples delivered several weeks ago to science instruments on NASA's Phoenix Mars Lander to understand the landing site's soil chemistry and mineralogy.

Within the last month, two samples have been analyzed by the Wet Chemistry Lab of the spacecraft's Microscopy, Electrochemistry, and Conductivity Analyzer, or MECA, suggesting one of the soil constituents may be perchlorate, a highly oxidizing substance. The Phoenix team has been waiting for complementary results from the Thermal and Evolved-Gas Analyzer, or TEGA, which also is capable of detecting perchlorate. TEGA is a series of ovens and analyzers that "sniff" vapors released from substances in a sample.

Confirmation of the presence of perchlorate and supporting data is important prior to scientific peer review and subsequent public announcements. The results from Sunday's TEGA experiment, which analyzed a sample taken directly above the ice layer, found no evidence of this compound.

"This is surprising since an earlier TEGA measurement of surface materials was consistent with but not conclusive of the presence of perchlorate," said Peter Smith, Phoenix's principal investigator at the University of Arizona, Tucson.

Scientists at the Phoenix Science Operations Center at the University of Arizona are specifically looking at the data from these instruments to provide information on the composition of Martian soil.

"We are committed to following a rigorous scientific process. While we have not completed our process on these soil samples, we have very interesting intermediate results," said Smith, "Initial MECA analyses suggested Earth-like soil. Further analysis has revealed un-Earthlike aspects of the soil chemistry."

The team also is working to totally exonerate any possibility of the perchlorate readings being influenced by terrestrial sources which may have migrated from the spacecraft, either into samples or into the instrumentation.

"When surprising results are found, we want to review and assure our extensive pre-launch contamination control processes covered this potential," said Barry Goldstein, Phoenix project manager at NASA's Jet Propulsion Laboratory in Pasadena, CA.

Since landing on May 25, Phoenix has been studying Martian soil with MECA's wet chemistry lab, two microscopes and a conductivity probe, TEGA's ovens and two cameras.

MECA's robotic wet chemistry lab studies soluble chemicals in the soil by mixing a soil sample with a water-based solution with several reagents brought from Earth. The inner surface of each cell's beaker has 26 sensors that give information about the acidity or alkalinity and concentrations of elements such as chloride or perchlorate. The beaker also can detect concentrations of magnesium, calcium and potassium, which form salts that are soluble in water.

With continuing results and the spacecraft in good condition, the mission has been extended through September 30. The original prime mission of three months ends in late August. The mission extension adds five weeks to the 90 days of the prime mission.

FMI: www.nasa.gov/phoenix

Advertisement

More News

04.01.15 Special: New Apple Watch May Eliminate Medical Exams For Airline Pilots

Combining The Capabilities Of Apple Technology And ADS-B Out May Replace Airline Pilot Medicals, But There Could Be A Catch ANN's April 1 "April Fool" Special Edition As the Pilots>[...]

04.01.15 Special: Inhofe -- Media Reporting On Aviation Should Be Knowledgeable

Proposes Legislation To Have Journalists Pass A Basic Written Exam ANN’s April 1 “April Fools” Special Edition Senator James Inhofe (R-OK) has proposed legislatio>[...]

04.01.15 Special: Regional Airline Looks To Undocumented Immigrants

Carrier Says Americans Unwilling To Take The Jobs At What It Can Afford To Pay ANN’s April 1 “April Fool” Edition It may just be the tip of the iceberg, but Repub>[...]

04.01.15 Special: Roscosmos Sues Boeing, SpaceX

Tries To Prevent Launches From Returning To American Soil The Russian Space Agency Roscosmos has filed a lawsuit in a Russian court against Boeing and SpaceX, saying the two U.S. c>[...]

Airborne 04.01.15: April 1st Special Episode!, David Bowie In Space, New TBirds!

Also: Inhofe Demands Media Aero-Accountability, "Super Duper" Cub, RANS' Exclusive WalMart Deal, Obama To Keep Air Force One, Cessna Bringing Back Bamboo Bomber Pop-star legend, Da>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2015 Web Development & Design by Pauli Systems, LC