NEW YORK – Shares in Elon Musk’s SpaceX closed almost 20% higher on their trading debut Friday after the biggest IPO in history, making the polarizing entrepreneur the world’s first trillionaire as he vowed to take humanity to Mars. The blockbuster initial public offering, which raised more than US$75 billion, is expected to kick off... The post Musk is world’s first trillionaire appeared first on New Era .