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NASA is due to give an update on Friday about the progress of its Mars rover, Curiosity.
The mobile lab's mission is to figure out if Mars was ever habitable. To do that, it has the equipment to spy out interesting-looking rocks, head over to them and drill out powder samples, which it can then analyse internally before sending the results back to Earth.
There's a lot for the aptly-named Curiosity to do, and here's a run-down of tech it's using to do it.
To start with, the rover gets its energy from a 125W nuclear battery, specifically a plutonium-powered radioisotope thermoelectric generator.
Image credit: NASA