Blue Origin’s New Glenn mega-rocket just exploded during testing at a launch site in Cape Canaveral, Florida, according to live streams from NASASpaceFlight.com and SpaceFlight Now . Blue Origin later confirmed the explosion. Jeff Bezos’ space company was performing a static fire test ahead of an anticipated fourth launch of the new rocket in the coming weeks, which was supposed to carry Amazon Leo internet satellites to space. That means the rocket was likely fully fueled, contributing to what is one of the largest rocket explosions in U.S. history and the worst failure in Blue Origin’s existence. Blue Origin said in an X post Thursday evening that “[a]ll personnel have been accounted for,” and Bezos wrote that they were “safe.” The company didn’t say what went wrong, only that an “anomaly” occurred. “It’s too early to know the root cause but we’re already working to find it. Very rough day, but we’ll rebuild whatever needs rebuilding and get back to flying. It’s worth it,” Bezos wrote .…