Intermediate
Srimad-Bhagavatam
SB Canto 1
SB 1.7.31, Purport:
The three worlds are the upper, lower and intermediate planets of the universe. Although the brahmāstra was released on this earth, the heat produced by the combination of both weapons covered all the universe, and all the populations on all the different planets began to feel the heat excessively and compared it to that of the sāṁvartaka fire. No planet, therefore, is without living beings, as less intelligent materialistic men think.