Ive been having alot of nukes hitting me last era on M3 1st i tried to ion it and it worked but, they sent another missile, so i relocated, then another missile, in that time recourses are low blues need to be saved reds are finished, what should i do? one of my friends told me to sheild my colony and i did but after a few ticks BOOOM radiation and lost some of my workers, i really need help in this or my colony is going to become like a OP.

shield won't work 4 nuke..
sadly only way is ion..

ion would be too costly

I would say you go for a diplomacy route, you talk to the guy who is nuking you. Ask why are they nuking and is there anything you can do in order for them to stop.

Or you could just embrace the nukes

Why not fight back?
Since you are low on resources and workers, you can't spam them.
So I suggest you make sure you have level 5 energy structure, then jam all the nukes which reach you, every 3 ticks [this will frustrate the person nuking you].
Or you could jam his alliance every time you have energy and make sure the player and the alliance know its you and why you're jamming them, they will get annoyed and may stop nuking you. You need to message them or broadcast it in a friendly way.

....The downside is they might get angry and nuke you a lot more.

or relocate outside of their nuke area. but i think the best way is to talk to them