SpaceX has acquired xAI, the company announced on Monday, merging two of Elon Musk’s most ambitious companies into the most valuable private company in the world. “This marks not just the next chapter ...

Elon Musk is combining rocket maker SpaceX with his artificial intelligence startup, according to a statement. SpaceX is reportedly gearing up for a massive IPO. Musk's xAI owns and operates his ...

Mark Jahn is a financial writer, editor, consultant, and award-winning economist covering ETFs, stocks, cryptocurrencies, options, and more. Andy Smith is a Certified Financial Planner (CFP®), ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Sleep has two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). It also has four stages that repeat in 4 to 6 cycles nightly. Each stage affects your body differently, from light ...