Modded Minecraft - Why are There so Many Black Holes in my world?

I have a Minecraft world where I go into outer space using mods, but when I came back on, There were a bunch of chunks that refused to load and looked black (see screenshot). The black holes consumed my space center where I launch my rockets! I tried everything others said. The only one left is MCEdit, but I don't know how to install it and pretty sure it doesn't work on Forge. I'm on an Aspire One 722, running Windows 7, and using 1.7.10 Forge.
Keep in mind I have these mods installed:
Minecraft Coder Pack (MCP)
Forge Mod Loader
Minecraft Forge
Micdoodle8 Core
Galacticraft Core
Galacticraft Planets
Damage Indicators
CraftGuide
Mo' Villages
MrCrayfish's Furniture Mod
Wall Painter
Still Hungry!