Elon Musk’s net worth rocketed to the $500-billion mark on Wednesday, according to Forbes. The tech titan reached the milestone as Tesla stocks have been climbing in recent months, the financial publication noted. Musk’s fortune went up about $10 billion from Tuesday, Forbes found — the latest step on his march to becoming potentially the world’s first trillionaire. The number underwent slight fluctuations on Forbes’ “Real-Time Billionaires” rankings throughout the afternoon. The Bloomberg Billionaires Index, which uses a different method to track the world’s richest people, placed Musk’s net worth at $459 billion. (full story)