Bill Gates slams Elon Musk's space ambitions as a 'waste of money'

Bill Gates, who is 67, has sparked a new feud with old rival Elon Musk. Gates criticized Musk’s plans to go to Mars and said that he should instead save lives by using his money to invest in measles vaccines.

During a BBC interview that was released on Friday, Bill Gates said that even though Musk had a positive impact on the world with Tesla, he didn’t consider him a real 'philanthropist' like he, Warren Buffett, and Jeff Bezos are.

When the Microsoft co-founder was asked by BBC journalist Amol Rajan if a trip to Mars was a wise use of money, Gates replied: 'Not in my view.'

'It's actually quite expensive to go to Mars. You can buy measles vaccines and save lives for $1,000 per life saved,' Gates said. 'And so [that] just kind of grounds you, as in – don't go to Mars.'