SpaceX's Starhopper launch scrubbed at the last possible second

SpaceX was scheduled to launch its scaled-down Starship test vehicle, Starhopper, on Monday evening. Things were looking good right up until the moment the spacecraft was supposed to fire up its engines, but unfortunately, that didn't happen. It wasn't immediately clear what went wrong, but the fact that the launch was called off after the countdown timer had reached T-0 suggested some kind of malfunction. Shortly after the scrub, SpaceX boss Elon Musk revealed the reason for the last-second abo...