Hall thrusters combine a magnetic field and a trapped electron cloud to create a completely hollow “virtual” cathode. A small amount of propellant gas (like xenon) is injected into the thruster’s ...

I have heard that ion engines are becoming reality. Will they be the space propulsion of the future? originally appeared on Quora: the knowledge sharing network where compelling questions are answered ...

A group of French physicists has optimized a type of ion thruster to significantly extend its lifetime: the new development made it sturdy enough to be able withstand a long trip into deep space. Such ...

Last week, as the world celebrated the first lunar landing, Apollo 11 astronauts Buzz Aldrin and Michael Collins both called for NASA to make Mars its next goal. But the chemical propulsion system ...

The phrase "engage the ion drive" still has the ring of a line from Star Wars, but these engines have been used in space missions for more than four decades and remain the subject of ongoing research.

What do scanning electron microscopes and satellites have in common? On the face of things, not much, but after seeing [Zachary Tong]’s latest video on liquid metal ion thrusters, we see that they ...

Magnetic confinement fusion offers the prospect of a carbon-neutral, environmentally responsible and inexaustible energy source. The present main-line approach to magnetic fusion energy is via the ...