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FEATURE
NEEMO 12 Mission Journal

05.14.07

Mission Day 6/7/8 Topside Report

The weekend allowed some time for the crew to relax, talk to their families, and celebrate Mother’s Day. It was a multi-cultural event!

On the science front, it focused on answering life sciences questions, as the crew donated urine, blood, and saliva to be analyzed back here in the lab. Two of the questions we are trying to answer include a study on oxidative damage during a 12-day saturation mission and immune function changes during a spaceflight analog mission.

You may remember that a similar immune study was undertaken during the NEEMO 5 mission. During that mission, there was evidence of oxidative damage and changes in iron metabolism – as determined by biological markers in blood and urine – similar to that observed during long duration space flight, and this mission allows a thorough follow up. Similarly, during NEEMO 5 we established the validity of the Aquarius facility and the pressures of a NEEMO mission to measure immune function changes, physiological stress, viral reactivation and viral specific immunity using blood samples obtained at several different time points during the mission. This phenomenon is called spaceflight-associated immune dysregulation (SAID). It is thought to be caused by multiple variables found in space missions, and also in NEEMO missions, including: confinement, isolation, health risk (saturation diving), physiological stress, and disrupted circadian rhythms. It’s very important to NASA to understand these physiological changes, in order to ensure crew health on long duration space missions.

On the Robotics front, we finished using the RAVEN robot and brought it back up safely (and dryly!) to the surface, and transferred down the M7 surgical robot. You may remember the M7 as the robot that participated in NEEMO 9. SRI has been working on telepresence surgery technology since the 1980s with a goal to develop a battlefield-based trauma surgery system that could be operated remotely by a surgeon. Telepresence technology can help medical units deliver care to critically wounded soldiers right into a combat zone dramatically increasing their chance for survival. The NEEMO mission demonstrates how the M7 could operate in a space environment. It participated in the American Telemedicine Association (ATA) annual conference in Nashville over the weekend, where both Army personnel and the general public had a chance to drive the robot located in the Aquarius habitat.

You’ve probably gotten the sense by now of how complicated these NEEMO missions are. We often get questions related to how they get supported. If you guessed that there are a lot of people behind the scenes making it happen, you are correct. A good example of how the behind-the-scenes machine works is illustrated by considering for a moment the blood, urine, and saliva samples mentioned earlier. How do we get them from under the sea, keep their biological integrity intact, and get them processed in a timely fashion?!

First, the crew needs to be trained to give these samples, including the blood draws from each other. Luckily, with 2 M.D.s on this mission, that wasn’t a challenge. Then, lots of empty containers need to be sent down and pre-labeled to contain the samples. Biohazard ice chests, full from daily deliveries of ice, contain the samples until they can be brought to the surface, so that the hormones and other important markers don’t degrade before analysis. Divers swim these empty containers and full samples between a support boat and the habitat in small “pots”, which are watertight and can slowly vent in order to equalize the pressure regardless of which direction it traveled. Once back on shore, the samples are rushed to a lab here at the NURC base, where lab technicians promptly analyze them. On a day like Sunday, which included blood, urine, and saliva samples, a team of 3 was in the lab for hours doing its analyses. Similar processes support every need the NEEMO crew has, from food and water to technical equipment, and everything in between.

Thanks for joining us,
       -- NEEMO 12 Topside Team

For crew journals, live webcam views, images and aquanaut profiles, visit:
      http://www.uncw.edu/aquarius/index.html
      http://www.nasa.gov/mission_pages/NEEMO/index.html

For streaming video from Aquarius, visit:
      http://www.uncw.edu/aquarius/thumb_cam.htm

For NASA’s Digital Learning Network, visit:
      http://nasadln.nmsu.edu/dln/

  ISSUE ARCHIVES 
 
 05.16.07 - Mission Day 10: Last Day of Diving Ops
"Tim led the way out on our excursion lines into pitch black seas."
+ Read More
 
 05.15.07 - Mission Day 9: The Days are Swimming By!
"Ever since we’ve reached the midpoint of this mission the days seem to be flying by at a much quicker pace than normal! "
+ Read More
 
 05.13.07 - Mission Days 6 and 7: NEEMO 12, The Weekend Edition
"A side benefit to the dives is the amazing wildlife we encounter. We were visited by a big turtle affectionately called aquanaut number 7."
+ Read More
 
 05.11.07 - Mission Day 5: New Experiments for Today: PUMA and the SRI Robot
"What a neat way to wake up every morning: literally hundreds of fish, some schooling, others darting at each other in an absolutely wonderful dance."
+ Read More
 
 05.10.07 - Mission Day 4: Diving and Potting
"A side benefit to the dives is the amazing wildlife we encounter. We were visited by a big turtle affectionately called aquanaut number 7."
+ Read More
 
 05.09.07 - Mission Day 3: Lots of varied work
"The aquanaut team really enjoyed seeing the students and their schools. Maybe some of them will someday join us here on Aquarius or even in space!"
+ Read More
 
 05.08.07 - Mission Day 2: Time to go to work
"From the time we got out of our bunks, teeth brushed and had our morning cup of coffee, it was a steady pace to get ready for the work day."
+ Read More
 
 05.07.07 - Mission Day 1: Moving Day
"In the style of our lunar excursion, we collected a 'contingency' piece of dead coral for later remote analysis and manipulation by our topside crew."
+ Read More
 
 05.06.07 - NEEMO 12 Training Journal
"An intense training week for the 12th NEEMO mission has concluded successfully. ..."
+ Read More
 
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Editor: Amiko Kauderer
NASA Official: Brian Dunbar
Last Updated: May 21, 2007
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