Forget Mars – Elon Musk now wants to start a ‘self-growing city’ on the Moon in less than 10 years

ELON Musk has long set his sights on building a colony on Mars where humans can live. But the billionaire space mogul is changing his rocket gears to focus on another, closer destination. The Moon. Musk, 54, wants to build a "self-growing city" on the lunar surface and believes it can be done in less...