Date: 15/10/2017 19:34:48
From: Tau.Neutrino
ID: 1132622
Subject: NASA's New Ion Thruster Engine Breaking Records

NASA’s New Ion Thruster Engine Is Breaking Some Important Records

NASA’s new X3 thruster, which is being developed by researchers at the University of Michigan in collaboration with the agency and the US Air Force, has broken records in recent test. It’s hoped that the technology could be used to ferry humans to Mars.

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Date: 17/10/2017 05:05:48
From: mollwollfumble
ID: 1133396
Subject: re: NASA's New Ion Thruster Engine Breaking Records

Tau.Neutrino said:


NASA’s New Ion Thruster Engine Is Breaking Some Important Records

NASA’s new X3 thruster, which is being developed by researchers at the University of Michigan in collaboration with the agency and the US Air Force, has broken records in recent test. It’s hoped that the technology could be used to ferry humans to Mars.

more…

“The X3 is a type of Hall thruster, a design that uses a stream of ions to propel a spacecraft. Plasma is expelled to generate thrust, producing far greater speeds than are possible with chemical propulsion rockets, according to NASA. A chemical rocket tops out at around five kilometers per second (3.1 miles/sec), while a Hall thruster can reach speeds of up to 40 kilometers per second (25 miles/sec).”

That can’t be right, can it? The top speed of a chemical rocket would be unlimited. Or perhaps they’re talking about the cost of lifting chemical fuel from Earth into space?

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