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Orlando, Florida- NASA and the space industry will conduct several missions over the next year to test more efficient, environmentally friendly spacecraft, including a non-toxic propellant and solar power. The rapid expansion of private spaceflight, along with planned missions to the moon and Mars, has prompted a need for easier handling of spacecraft and their fuel, Jeff Sheehy, NASA’s chief engineer for space technology, said in an interview. The industry traditionally relied on dangerous chemicals such as hydrazine, which has toxic fumes, or liquefied oxygen, which has to be supercooled and is highly explosive. But new fuels without such risks have lower handling costs and improved safety, Sheehy said. (UPI)

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