Elite Dangerous Wiki

Originally known as an 'Unknown Fragment', this is a piece of a Thargoid sensor. Since they have not been given a designation by intergalactic trade authorities, it is impossible to buy or sell them legally.

— In-game description

A Sensor Fragment, formerly known as an Unknown Fragment, is a Manufactured Material introduced in v2.3.

The Engineers Professor Palin and Chloe Sedesi both request 25 units of Sensor Fragments before they will offer their services.

Known Sources