Super-Earth Unlikely Able to Transfer Life to Other Planets
ScienceDaily (Mar. 20, 2012) — While scientists believe conditions suitable for life might exist on the so-called “super-Earth” in the Gliese 581 system, it’s unlikely to be transferred to other planets within that solar system.
“One of the big scientific questions is how did life get started and how did it spread through the universe,” said Jay Melosh, distinguished professor of earth and atmospheric sciences. “That question used to be limited to just the Earth, but we now know in our solar system there is a lot of exchange that takes place, and it’s quite possible life started on Mars and came to Earth. There’s also been a great deal of discussion about the possible spread of life in the universe from star to star.”