comscore US engineer builds novel thruster to help send humans to Mars
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US engineer builds novel thruster to help send humans to Mars

University of Michigan has developed a prototype of thrusters that will form the basic system of spacecraft for the future Mars project. The thrusters is said to be laptop-sized and is funded by NASA.

  • Updated: February 19, 2016 2:05 AM IST
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An engineer from University of Michigan has developed a prototype of a thruster that may form the basis for a propulsion system to take a manned spacecraft to Mars in the 2020s. NASA has funded a spaceflight propulsion system to be built around a tabletop-sized thruster developed by Alec Gallimore, the Richard F and Eleanor A Towner professor of engineering. The US space agency awarded $6.5 million over the next three years to Aerojet Rocketdyne for the development of the propulsion system, dubbed the XR-100. Also Read - NASA’s Ingenuity Mars Helicopter uses same chip as Samsung Galaxy S5, OnePlus One

Also Read - NASA Perseverance Mars rover uses 1998 iMac processor with just one upgrade

Gallimore’s thruster, called X3, is central to this system and his team will receive $1 million of the award for work on the thruster. Also Read - NASA astronauts complete seven hour spacewalk to prep ISS for new solar panels

The XR-100 is up against two competing designs. All three of them rely on ejecting plasma — an energetic state of matter in which electrons and charged atoms called ions coexist — out of the back of the thruster. But the X3 has a bit of a head start. For thrusters of its design power, 200 kilowatts, it is relatively small and light.

ALSO READ: NASA invites ISRO for possible collaboration on mars mission

The core technology – the Hall thruster – is already in use for maneuvering satellites in orbit around Earth.

For comparison, the most powerful Hall thruster in orbit right now is 4.5 kilowatts,” Gallimore said.

That’s sufficient to adjust the orbit or orientation of a satellite but it’s too little power to move the massive amounts of cargo needed to support human exploration of deep space. Scott Hall, a doctoral student in Gallimore’s lab, will use the funding to put the X3 through a battery of tests, running it up to 60 kilowatts and then up to 200 kilowatts.

Doctoral student Sarah Cusson will investigate a tweak that could allow the X3 to remain operational for five-to-10 times longer than its current lifetime of a little over a year.

ALSO READ: NASA reveals detailed plan to send humans to Mars

If we do our jobs over the next three years, we can deliver both projects. If I had to predict, I would say this thruster would be the basis for sending humans to Mars, Gallimore added.

The US space agency selected the thruster as part of its Next Space Technologies for Exploration Partnerships (NextSTEP) program. NextSTEP encompasses a set of projects aimed at improving small satellites, propulsion and human living quarters in space. These are milestones toward sending humans into orbit between Earth and the moon in the 2020s and to Mars the following decade.

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  • Published Date: February 19, 2016 2:00 AM IST
  • Updated Date: February 19, 2016 2:05 AM IST



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