• The FCC asked Cowboy Space for the physical dimensions of its satellites.
• The request includes dimensions of solar panels.
• Cowboy's application implies 400,000 to 500,000 tonnes of spacecraft.
• The company has raised $275 million for its satellite program.

This inquiry may indicate the FCC's growing concern about the feasibility of large satellite constellations. The request for physical dimensions suggests that the regulator is seeking to understand the practical implications of such projects, which could have significant implications for the satellite industry and launch capacity. The fact that Cowboy Space's application implies a massive amount of spacecraft mass may signal a need for more stringent regulations or requirements for satellite operators.