(No description in orbit, planet is not marked as special on the map either. Your scans and initial survey may deceive you, if you see the terrain change wildly in a way that can't be explained by temperature or volcanism, you're here! Destruction of the temple will yield an alien artifact.)
This beautiful world is inhabited by a single intelligent alien. Except for his size he appears human, and also a believer in the ancient aliens hypothesis.
In fact, he seems to think he is one of them, and doesn't take kindly to those who do not believe him.
He does seem to have access to some powers, though all his abilities are easily explained with technology. Besides his superhuman strength in melee combat, he will also reappear upon being "killed". Destruction of the temple will stop this.