A rocket belonging to Jeff Bezos ’ Blue Origin space company exploded during a ground test known as a hotfire at a Florida launch pad on Thursday night. The New Glenn rocket, named after John Glenn, the first American astronaut to orbit Earth, experienced an “anomaly” at approximately 9 p.m. E.T. at the Cape Canaveral Space Force Station. “We experienced an anomaly during today's hotfire test. All personnel have been accounted for,” read an update from Blue Origin. Bezos said it had been a “very rough day” and that while it’s “too early” to know the root cause, the team is “already working to find it.” “We’ll rebuild whatever needs rebuilding and get back to flying. It’s worth it,” he vowed. Footage of the incident shows the rocket erupting into a massive fireball , sending towering flames and thick smoke into the night sky.…