2022-2023 Field Season (#22)

Hello Capcom !

Journalist report – Sol 08

Prepared by : Alexandre Martin (Crew Journalist) – 26 feb 2018

Here is my report of the day

Best regards.

Journalist report, 02/26/18: Water on Mars?

As most of the crew became increasingly hungry over the days, Benoît, with the help of Jérémy, decided to make pizzas. That was not an easy task using only dehydrated products! However, along with some seasonings that Jérémy brought back from the GreenHab, those pizzas were literally amazing, and to go to bed with a full stomach was deeply appreciated!

“Wake up”! This time, I was indeed not woken up by my alarm, that I forgot to put back after our day off, but by Victoria, knocking on my door. After a resting day for our muscles, it was time to go back to sport, and to bring back our body aches. An EVA was also planned for today. And for the first time of the mission, neither Louis nor Victoria would be EVA leader! Jérémy was the one to lead today, accompanied by Gabriel, Victoria and me. We made a short stop at our experiments, in order to change the LOAC battery. However, the voltmeter seemed to have caught a cold, and could not give any information. Jérémy thus almost confused the battery to take back to the Hab with the battery to plug to the LOAC. After having gone further and further north since the beginning of the mission, we decided to travel south this time. However, our map played a few tricks to us, and we had some troubles finding the place we wanted to go to.

We finally arrived at the rim of the canyon we wanted to visit, and we made a small detour in order to be able to get into it. We discovered here something we did not think we would find in such environments: some large bodies of frozen shallow water. Jérémy could not prevent himself from walking on one of them, yet he rapidly stopped when he realized that some cracks began to initiate. After having completed our trip in the canyon and having taken some photos, we went back to our vehicles, and we decided to go back home. This has been a quite short yet very nice EVA!

As our reserves of pasta and rice are starting to decline dangerously, we now have to assault our stock of beans, surely nourishing, but still a lot less tasty. As usual, we spent a lot of our afternoon time playing “Keep talking and nobody explodes”: the difficulty is now way higher (Louis quite notably paid the price) and our team have been split up, leading to some misapprehension and misunderstandings.

Alexandre Martin, Crew 189 Journalist

Journalist report – Sol 07

Prepared by : Alexandre Martin (Crew Journalist) – 25 feb 2018

Here is my report of the day

Best regards.

Journalist report, 02/25/18: First day off / Special edition 1: About the LOAC

On day off for the entire team today: no sport or EVA, yet we remain on simulation, and everyone did work a bit on their experiments or on other tasks. Benoît, Laurent and I helped Jérémy transplant carrots in new pots, while Louis finished his work on our encouragements video for our schoolmates preparing their apparition in famous French show “Questions pour un champion”. The rest of the day has been a complete break for the team, before the beginning of our second week of mission: Jérémy and Gabriel have had the luxury to take their first shower today, whereas Laurent and Benoît already took one. Only Louis, Victoria and I still did not have that opportunity. But that does not imply that we are covered by dirt! We indeed wash ourselves daily with disinfecting wipes, which is nonetheless an appreciated comfort.

As I do not have so much more to tell about the crew today, I will explain the purpose of the experience hidden behind the strange name LOAC, as this name has already been quoted several times in my reports. The Light Optical Aerosol Counter (LOAC) is used to measure the air’s concentration in aerosols, which are fine particles in suspension. It gives the size distribution of these particles as well as an indication of their typology (carbon, minerals, salt, liquid, etc.). The purpose of this experiment is to use the instrument in different conditions to get new measurements and analyze their meaning. Two types of measurements will be harvested : outdoor ones, to get information about the airborne dust, and indoor ones, to see how the air quality of a confined space changes according to the activities crew members are having (cooking, changes between day and night, particles brought back from EVA, etc.).

Such particles have indeed an important impact on a planet’s atmosphere, mainly on its climate, but also on human health, the most obvious example being carbon particles, which can stick to lungs and cause severe damages. We have still a lot to learn about Martian atmosphere, its composition and chemistry. This type of instrument has indeed never been used in any space mission before; it would thus give unprecedented science results on another planet’s atmosphere! It is also a great tool to control air quality in a confined space, because of its small size and low consumption as well as the precision of its measurements. Considering a long term space mission, this is an important factor that needs to be controlled; it could prevent disastrous catastrophes and allow a full-time survey of air quality. As you already know if you read some of my reports, we had lots of difficulties in deploying the LOAC, mainly because of its alimentation, yet it is now fully functional!

We would like to thank Jean-Baptiste Renard, research supervisor at CNRS (French main scientific research center) and developer of the LOAC, for having accepted to lend us this instrument, and for his trust in us for its use.

Alexandre Martin, Crew 189 Journalist, with the help of Jérémy Auclair, Crew 189 GreenHab officer, in charge of the LOAC experiment.