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Ascension Island's hydroponics lab is revitalizing life on the volcanic island

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per5 it's physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per its physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per5 it's physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per its physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per5 it's physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per its physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per5 it's physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

The 45th Space Wing's Ascension Island Auxiliary Airfield looks quite similar to Mars, per its physical characteristics. Food must be flown in because the topography of the island isn't able to grow food organically. However, a team from the 45th Mission Support Group's Detachment 2 has revamped the hydroponics lab so that fresh vegetables can be grown and consumed by the 700 inhabitants of the volcanic island. (U.S. Air Force photo by Cathy Little)

ASCENSION ISLAND AUXILIARY AIRFIELD (AFNS) --

Space has been the center of conversation in the news and entertainment. There was even a movie about future human inhabitants on Mars! And how would that happen? How would we be able to sustain growing food? Mars, a dry and dusty planet, would not be able to support human life organically.

And just like the case would be on Mars, the food choices on Ascension are very limited and depend completely on what supplies are flown to the island.

“If you’ve ever been to Ascension Island, or even looked at photos online, the island doesn’t differ much from Mars,” Cathy Little, Ascension Island Auxiliary Airfield agricultural specialist said.

Supplies, including food, are flown to the island because Ascension’s water cycle, soil and topography make it very difficult for anything to grow on the island – what does grow, you cannot or would not want to eat, until recently.

Introducing Ascension Island’s own personal ‘garden’, the hydroponics laboratory.

Hydroponics, or the process of growing plants in sand, gravel or liquid instead of soil, can be seen in the movie “The Martian.” Though it seems like something only a screenwriter could come up with, the agricultural team on Ascension Island has taken the idea and run with it.

“The hydroponics lab isn’t a laboratory in the traditional sense,” Little said. “Our facility is an 8,721 square foot greenhouse that has two vine crop bays and one leaf crop bay.”

In the greenhouse, the team on Ascension uses two different systems to grow fresh produce on the volcanic island. For vining crops, like tomatoes and peppers, they use a nutrient injection system, bucket system and Perlite, which is a naturally occurring volcanic glass that has a relatively high water content. For leafy crops, like lettuce and herbs, they use a nutrient film technique, where a very shallow stream of nutrient-filled water is re-circulated past the bare roots of the plants.

Though the lab has grown over the years, hydroponics is not new to Ascension Island.

“During World War II, the shipping of fresh vegetables overseas was not practical and remote islands where troops were stationed were not a place where they could be grown in the soil,” said Rick Simmons, hydroponics expert, in a 2008 article. “In 1945, the U.S. Air Force built one of the first large hydroponic farms on Ascension Island, using crushed volcanic rock as a growing medium.”

“Growing conditions haven’t changed since World War II; therefore, the need for hydroponics still exists,” Little said. “Just as it was in 1945, shipping fresh vegetables to a remote island is not cost effective and with the lack of arable soil on the island, we face the same dilemma as our forebears—how to reduce costs and meet the nutritional needs of the troops and contractor personnel stationed here.”

With the revitalization of the hydroponics lab, Little thinks a shift could be on the horizon for Ascension Island.

“In addition to having a virtually limitless supply of fresh produce and reducing the cost of transportation, morale is greatly improved knowing that produce, picked that very day, is awaiting everyone in the base dining hall,” Little said. “Hydroponics allows us to meet demands, reduce costs and provide nutritional value for our personnel.”

As the team continues to experiment with different crops, they hope to expand the size of the lab and the list of what they’re able to grow.

“If we were to operate at a full greenhouse capacity, we could produce enough fresh produce to feed the entire population of Ascension Island,” Little said. “That’s about 700 people.”

For the 45th Space Wing’s Ascension Island Auxiliary Airfield, neither the sky, nor Mars, is the limit.

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