Blue Origin’s New Glenn rocket exploded Thursday night due to an “anomaly” during its hotfire test.  Video shows the rocket becoming engulfed in a big ball of flame at Florida’s Cape Canaveral Space Force Station.  “All personnel are accounted for and safe,” Blue Origin CEO Jeff Bezos wrote on X . “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.”  The latter part of that message brought many calls for the billionaire to focus, instead, on food insecurity, climate change, and other challenges here on Earth.  NASA Administrator Jared Isaacman doubled down on Bezos’s message in his own X post : “Spaceflight is unforgiving, and developing new heavy-lift launch capability is extraordinarily difficult.…