Armed with a freshly raised Series A round of $50 million, billionaire Baiju Bhatt wants to move from Wall Street to space. The co-founder of stock-trading platform Robinhood and son of a NASA scientist, Bhatt announced his new company, Aetherflux, in the fall of 2024, and the startup’s goal is straight out of sci-fi: harvest solar power closer to the source, gathering it from the heavens and beaming it back down to Earth via laser. Aetherflux wants to move fast, too.