Asteroids: The next gold rush? Some of the asteroids in our solar system may contain resources worth quintillions of dollars, Bloomberg reports. And mining them is inching closer to reality, with NASA, national governments, and the private sector eyeing valuable water and metals. Business heavyweights such as Richard Branson and China’s Tencent Holdings are already investing in mining firms, and the “space economy” could be at least a $1 trillion industry, predicts Planetary Resources president Chris Lewicki. • Share your thoughts: #MiningAsteroids