Raise several billion dollars to fund your research programme. Try targeting the ultra-rich, famous and sci-fi obsessed.

Develop and build a network of lightweight telescopes. Send them into low orbit around the earth .

Direct your telescopes towards nearby asteroids and analyse them for signs that suggest the presence of minerals.

Spend more of your funds (Nasa suggests $2.6bn) developing robots to strip-mine minerals in space.

Alternatively, find a friendly government, crash your asteroid into their country and refine it on Earth.

Hope you find enough rare minerals to justify the expenditure.