A sample of bio-mechanical tissue taken from a Thargoid Scout-class vessel. Tissue samples appear to be much sought after for research purposes, despite the fact that they appear to be highly corrosive.
— In-game description
A Thargoid Scout Tissue Sample is a sample of the hull of a Thargoid Scout that has been extracted by a Research Limpet. The sample is corrosive to ship modules, and can only be safely transported using a Corrosion Resistant Cargo Rack. It is considered an illegal salvage item in most systems.