Microsoft Co-founder and world’s second-richest person Bill Gates has purchased an eco-friendly superyacht ‘Aqua’ for $645 million (more than ₹4,600 crore), The Telegraph reported. The 370-foot-long luxury superyacht has five decks with space for 14 guests, over 30 crew members, a gym, yoga studio, massage parlour and swimming pool. It’s powered with liquid hydrogen stored in two tanks at -252.8°C.