Gina Rinehart's Hancock Prospecting has snared a huge stake in Elon Musk's SpaceX during its out-of-this-world initial public offering.
The company did not specify the amount it invested, but Ms Rinehart said it was "significant investment for Hancock" and the company was pleased to get an allotment during the oversubscribed IPO.
The Wall Street Journal reported the stake was more than $US1 billion ($1.4 billion).
Referring to SpaceX and Tesla, Australia's richest woman noted Mr Musk had built two of the world's 10-most valuable companies by market capitalisation, an extraordinary achievement.
"Elon has done what very few people in history have done," Ms Rinehart said.
"He has not just imagined the future, he has built companies capable of delivering it, and helped to keep American technology at the forefront."
