NASA scientists 'cooking up food for 3-yr mission to Mars'

London, July 18 (ANI): A group of scientists at NASA are preparing food for a three-year mission to Mars.

The menu must sustain a group of six to eight astronauts, keep them healthy and happy and also offer a broad array of food.

"Mars is different just because it's so far away," the Daily Mail quoted Maya Cooper, senior research scientist with Lockheed Martin who is leading the efforts to build the menu, as saying.

"We don't have the option to send a vehicle every six months and send more food as we do for International Space Station," she said.

Astronauts who travel to the space station have a wide variety of food available to them, some 100 or so different options including ice cream.

But it is all pre-prepared and freeze-dried with a shelf life of at least two years.

While astronauts make up a panel that tastes the food and gives it a final ok on Earth before it blasts off, the lack of gravity means smell - and taste - is impaired. So the food is bland.

On Mars though, there is a little gravity, allowing NASA to consider significant changes to the current space menu. That's where Cooper's team comes in.

Travel to Mars opens the possibility that astronauts can do things like chop vegetables and do a little cooking of their own. Even though pressure levels are different than on Earth, scientists think it will be possible to boil water with a pressure cooker, too.

One option Cooper and her staff in the Johnson Space Center in Houston are considering is having the astronauts care for a "Martian greenhouse".

They would have a variety of fruits and vegetables - from carrots to bell peppers - in a hydroponic solution, meaning they would be planted in mineral-laced water instead of soil.

The astronauts would care for their garden and then use those ingredients, combined with others, such as nuts and spices brought from Earth, to prepare their meals.

"That menu is favourable because it allows the astronauts to actually have live plants that are growing, you have optimum nutrient delivery with fresh fruits and vegetables, and it actually allows them to have freedom of choice when they're actually cooking the menus because the food isn't already pre-prepared into a particular recipe," Cooper said.

The top priority is to ensure that the astronauts get the proper amount of nutrients, calories and minerals to maintain their physical health and performance for the life of the mission, Cooper said.

The menu must also ensure the psychological health of the astronauts, Cooper explained, noting studies have shown that eating certain foods - such as meatloaf and mashed potatoes or turkey on Thanksgiving - improve people's mood and give them satisfaction.

Cooper's team of three has already come up with about 100 recipes, all vegetarian because the astronauts will not have dairy or meat products available.

It isn't possible to preserve those products long enough to take to Mars - and bringing a cow on the mission is not an option, Cooper jokes.

To ensure the vegetarian diet packs the right amount of protein, the researchers are designing a variety of dishes that include tofu and nuts, including a Thai pizza that has no cheese but is covered with carrots, red peppers, mushrooms, scallions, peanuts and a homemade sauce that has a spicy kick.

To keep this menu going, and get the most out of any research about food sustainability on Mars, Cooper says it's possible NASA will choose to have one astronaut solely dedicated to preparing the food - the Emeril of the Mars mission . (ANI)