Yes. In Jainism, life (jiva) is not limited to Earth. Jiva is believed to inhabit many kinds of beings across a vast cosmos, not just our planet.

• Jain cosmology describes multiple realms where living beings reside: higher (devas or celestial beings), middle (humans and animals), and lower realms (various hells). Life can be found throughout these realms.
• Jivas are eternal and migrate between life forms and realms through karma; Earth is just one place among many where a jiva may be born.
• There are differences in details between Digambara and Śvetāmbara traditions about cosmology, but both agree that life exists beyond Earth and across the cosmos.

If you’d like a Jain-text-based explanation, I can provide a concise arth (meaning) from a specific sutra or purana.