Tellus

It's the Starlyng Universe's Earth! Home to the Humi. 

Inhabitants of Tellus are referred to as "Tellusians" by other denizens of the Universe. "Tellusian" and "Tellusic" (alternatively, "Tellurian" and "Telluric") are common descriptors for anything originating from the planet or created/inspired by the Humi ("Tellusian spacecraft", "Tellusic fashion", so on).

Some Humi, particularly those born and raised on Mavors, also call Tellus "Terra", and themselves "Terrans", honoring the bygone Mavortian civilization.