Mars
This doesn't look real.
Watch the livestream here at 18:30 GMT.
Would you drive a nuclear-powered car?
Just in case you had lost faith in humanity.
Mars Rover 2020 will search for ancient signs of life.
Imagine never getting a flat tyre ever again.
Each engine could run non-stop for an entire decade.
Ion thrusters achieve huge speeds at a fraction of the costs.