Prithvi (Sanskrit: पृथ्वी, , also ) the Vast One is the Sanskrit name for the earth as well as the name of a devi (goddess) in Hinduism, specifically Bhūmi Devi, and some branches of Buddhism.As Pṛthvī Mātā Mother Earth she contrasts with Dyaus Pita father sky. In the Rigveda, Earth and Sky are primarily addressed in the dual as Dyavaprthivi. She is associated with the cow. Prithu, an incarnation of Vishnu, milked her in cows form.She is a national personification in Indonesia, where she is known as Ibu Pertiwi.

Bio from Wikipedia - See more on Text under CC-BY-SA license