SpaceX rivals challenge Starship launch license in Florida over environmental, safety concerns

SpaceX's plans to launch its Starship-Super Heavy two-stage rocket 44 times a year from NASA's Kennedy Space Center in Florida have come under fire from its two biggest rivals: United Launch Alliance (ULA) and Jeff Bezos' Blue Origin.

The Spaceship vehicle is the world's largest rocket. Its two stages are SpaceX's Super Heavy booster rocket and the upper-stage spacecraft, somewhat confusingly called Starship or "Ship," which could one day carry a crew of up to 100 astronauts.

After being tested over the past few years, the Starship/Super Heavy design has undergone a number of upgrades, the latest of which has ...