Description Origin System
Unknown parts of space C1, C2 or C3
Dangerous unknown parts of space C4 or C5
Deadly unknown parts of space C6

Now to 4 hours This wormhole is reaching the end of its natural lifetime.
4-16 hours This wormhole is beginning to decay, and probably won't last another day.
16-48 hours This wormhole has not yet begun its natural cycle of decay and should last at least another day.