The fuel for a fully reusable rocket that can unlock truly low-cost access to space isn’t methane or liquid oxygen. It’s cash, and Stoke Space Technologies is tanking up. The company has now “completed the initial closing” of a $1 billion Series E ...

The agency said that the Tesla Roadster does not meet its “definition of an aircraft.”

Tesla has unveiled its new Roadster sports car, which can thrust itself up in the air. But drivers shouldn't expect to take it for a spin anytime soon. Elon Musk's car company this week debuted the latest bells and whistles of its second generation Roadster — chief among them,