Summary:
- Cosmic rays, high-energy particles from space, could potentially provide energy to support life on planets outside the "Goldilocks zone" - the habitable region around a star where liquid water can exist on a planet's surface.
- Planets in the Goldilocks zone receive enough energy from their star to maintain liquid water, but planets outside this zone may still be able to support life if they can harness the energy from cosmic rays.
- This could open up the possibility of life existing on more planets in our solar system and beyond, expanding the potential for extraterrestrial life beyond the traditional habitable zone.