I feel like sometimes, very rarely, your ship might go out of control and lead you straight into a black/wormhole. Wormholes are black-ish purple and black holes, are, of course, black. There's a 0.5% chance of going into a black hole which kills you instantly, and a 1% chance of going into a wormhole which completely re-creates your Minecraft universe, with the only way of getting back to your old one is to find another wormhole (in the new universe it's now a 10% chance of falling into a wormhole).
The only way to prevent either of these is to get a radar, crafted as such and add it into your ship:
[D][T][D]
[G][R][G]
[T][C][T]
D = Diamond
G = Glass
R = Redstone
T = Redstone Torch
C = Compass
The only way to prevent either of these is to get a radar, crafted as such and add it into your ship:
[D][T][D]
[G][R][G]
[T][C][T]
D = Diamond
G = Glass
R = Redstone
T = Redstone Torch
C = Compass