Blue Origin's New Glenn rocket explodes during test at Kennedy Space Center, causing a setback to Jeff Bezos' space ambitions.

Blue Origin founder and billionaire Jeff Bezos said it was a ”very rough day” for the company, but it was too early to know the “root cause” of the incident.

The New Glenn rocket experienced an "anomaly", the company said, exploding during a test.

The 320-foot rocket was undergoing an engine \