Air-Breathing Electric Thruster (ABET)
The European Space Agency (ESA) is building Air-Breathing Electric Thruster (ABET) that can possibly extend the working life of satellites by years and even help with interplanetary travel using just the air around it as a propellant.
This Air-Breathing Electric Thruster (ABET) does not operate in complete vacuum, but works in low Earth orbit (LEO) – altitude of 2,000 km or less– notes the ESA.
At LEO, the air is scarce, but not entirely absent. In fact, there is enough air to cause a drag on spaceships and satellites. This is why there are on-board engines installed on satellites to correct course every time it moves out of position. An air-breathing engine works by collecting the sparse air at the edge of the atmosphere.
Topics: Atmosphere-breathing electric propulsion • Interplanetary spaceflight • Ion thruster • Spacecraft propulsion • Thruster
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