Nodes are actually a short form for saying Xenodium crash sites or Energy Nexuses.
Example of Nodes:[]
Xenodium Nodes (crash sites)[]
Xenodium nodes are where you collect Xenodium ores. You can build Xenodium collectors like Plants on top of the nodes. These Nodes can store up to 7000 Xenodium, after its exhausted, you may need to recycle the building unless its a MegaMite.
Click here to find out more about Xenodium.
Energy Nodes (Nexus)[]
Energy Nodes are where you get energy from. Energy-harvesters like Bloats are built on top of these to collect energy. These nodes can store up to 4000(?) Energy, after its exhausted, you may need to recycle the building.
Click here to find out more about Energy.