This lore can be found by a Consular on Nar Shaddaa.
It is obtained while doing the class quest 'The Professor'
A very rare and highly specialized field, the study of exo-technology focuses on items or devices believed to originate somewhere beyond the borders of the galaxy. Understandably rare, these advanced and complex items are constructed using unique materials and radical engineering otherwise unknown to Republic and Imperial scientists. Whether these items are relics of ancient civilizations that disappeared long ago or artifacts from thriving cultures waiting to be discovered is almost always unclear, as are the explanations for how the technology found its way to known space.