SpaceX CEO Elon Musk mocks Jeff Bezos' moon plans after Blue Origin unveiled its lunar lander

The billionaires are at it again. Jeff Bezos on Thursday unveiled Blue Origin's grand vision to travel to the moon when he took the wraps off of Blue Moon, the spaceflight company's new lunar lander. Not content to let the Amazon CEO have his glory, Elon Musk sent out a late night tweet including an altered image of the lander with the word'Moon' crossed out and replaced with the word'Balls.' Not content to let Jeff Bezos have his glory, Elon Musk sent out a tweet including an altered image of the lander with the word'Moon' crossed out and replaced with the word'Balls' 'Oh stop teasing, Jeff,' Musk wrote, adding a winking emoji at the end of the tweet. Musk and Bezos have been known to spar over Twitter about their accomplishments in the past.