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Scientists are trying to get to Mars. Researchers from the U.S. space NASA are currently trying to find out what of plants could grow in the red on Mars. They hope that astronauts will be able to start growing their food on the Red Planet. The journey to Mars could take up to two-and-a- years. The astronauts will need to take a of food with them just to for the journey. They will never be able to return to Earth, which means they will need to grow their own , vegetables and other plants from seeds. NASA said there could be a because Mars doesn't have soil that is good for growing things. It just has red dust.

Humans may be on their to Mars in the next 15 . NASA has been testing special "Martian gardens" to see what kind of might grow on Mars. They have used a special made up of crushed volcanic rock. It contains no nutrients or material, so it is similar to the soil on Mars. The scientists managed to grow in it. They said the lettuce tasted , but it had weaker roots and took longer to grow. They will now try growing other . A NASA spokesman said: "Discoveries made in these Earth-based 'Martian gardens' will pave the way for future studies and technology in terms of reliable, efficient food a long way from [Earth]."

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