One of five motors malfunctioned at liftoff, leaving the vehicle short of the net thrust needed to reach the correct altitude. The vehicle is still a prototype, but this is the fifth failure thus far.
Index to 1:33:31 if it doesn't do so automatically.
dominus_stercae 2 points 2.7 years ago
If you watch beyond the initial launch for a couple of minutes you'll see it fail in flight, per the title.