Jack Hydrazine - great name. It looks to me like one of the combustion chambers let go at the reported 108% thrust.
Me? I was wrong about everything. Frinstance, after the moonwalk, I thought I might soon thereafter be going on a Mars Moon Colony Mission, like my Heinlein Heroes. Instead I got treated to decades of "Science Fair" type "scientific Projects" in the old shuttle. Now the only way I'll leave the planet is the same way Heinlein did! m(And I won't need some Soviet Cold War Surplus Engine, either)
Some day, Americans will get into real space. When they get to Mars, I hope they like Chinese food.