Jeff Bezos’ Blue Origin has called off the launch of its New Glenn rocket from Florida at the last minute after a “few anomalies” were found during mission countdown.

Amazon’s Jeff Bezos founded the company 25 years ago. He took part in Monday’s countdown from Mission Control, located at the rocket factory just outside the gates of NASA’s Kennedy Space Center about 50 miles (80 kilometers) east of Orlando, Florida.

Bezos’ space company Blue Origin started at about the same time as Musk’s SpaceX but since then Musk’s firm has launched more than 400 of its Falcon 9 rockets into orbit and is testing out its giant Starship rocket which it hopes will send astronauts to the Moon and one day possibly on to Mars.