Subspace research was an academic discipline that incorporated the study of subspace.
On stardate 38528.4, Walter Pierce was decorated with the Huntley Award for subspace research. (TNG: "Eye of the Beholder")
Also for subspace research, Anaanda Ziff received the Uyehara Award on stardate 45789.4. (TNG-R: "Eye of the Beholder")
In the original okudagram, Ziff received the Okuda Award in this research field.