Tom Vice has stepped down as CEO of Sierra Space, as reported by CNBC. He led the company for three and a half years, overseeing a significant $290 million fundraising round and a military contract. Despite these achievements, the company has faced challenges, including delays in launching its Dream Chaser spaceplane and executive turnover. The interim CEO will be Faith Ozmen, the company's chairman. There is uncertainty surrounding Sierra Space's potential plans to go public in late 2025 under new leadership.