Navigational Hazards (NavHaz) do not set off photons. It's better to surround every sector leading out of yuor front sector with navhaz. When a player flys in and gets blown up their pod only warps to the last sector they exited from, i.e. next door to your front sector. (AX.BBS/TW.NET - ML: Reisa@MMN, 5/21/96)
 
Another sillyism.....debris from planet = 10% Nav Haz and debris from one port = 20% Nav Haz.

(AX.BBS/TW.NET - ML: sheesh@pcs, 6/2/96).
 
You cannot avoid a nav-haz if it is at 100%. One way to bring the 100% nav-haz down is to
bu ild 10 planets in the sector. The planets will absorb the naz-haz but you will take damage each time your g-torp in the nav-haz sector. To calculate the battle points your ship will suffer whne entering a nav-haz just multiply the nav-haz percentage by 10. (Dan Nettz@TW-FIDO, 6/22/96)