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US Ion Rocket Engine Has Been Running For 5 Years
NASA's advanced ion propulsion system has made history by operating continuously for over 5.5 years, setting a new world record in space propulsion technology. This remarkable achievement marks the longest test ever conducted on any space propulsion system, demonstrating the engine's reliability and efficiency for deep space exploration.
The engine, which is solar-powered, uses energy from the spacecraft's solar panels to accelerate propellant, achieving speeds of up to 90,000 miles per hour (about 140,000 kilometers per hour). Over 48,000 hours of continuous operation have been recorded, proving its durability and performance under extreme conditions.
This breakthrough is part of NASA's Evolutionary Xenon Propulsion Technology (NEXT) program, based at the Glenn Research Center in Cleveland. The project aims to develop next-generation electric propulsion systems, focusing on power management, propellant handling, and other critical components. The thruster has exceeded all expected performance metrics and will soon conclude its long-term testing.
Michael Patterson, the chief researcher of the NEXT project, stated, "We are ending this test voluntarily by the end of the month. The engine has operated at full capacity and surpassed all anticipated scientific goals." Such high-efficiency propulsion systems are essential for future deep space missions, offering significant advantages over traditional chemical rockets.
During the extensive durability tests in a vacuum chamber at the Glenn Research Center, the engine consumed approximately 870 kg of helium propellant. However, the total impulse generated is equivalent to over 10,000 kg of conventional rocket fuel, showcasing its incredible efficiency.
The core ionization chamber was developed at the Glenn Research Center, while the ion acceleration assembly was designed and built by Aerojet Rocketdyne in California.
Julie van Kolek, deputy president of Rockstar's senior space planning department, highlighted, "NASA has developed a new generation of high-power solar electric propulsion systems that will significantly enhance our nation’s capabilities in scientific research and human space exploration."
This technology will also play a key role in NASA’s asteroid exploration program, aiming to identify potentially hazardous asteroids, capture them, or alter their orbits to ensure planetary safety.