extraterrestrial life

Science & Technology

Why discovering organic molecules in the Solar System could indicate the existence of extraterrestrial life

The past month has seen several fairly major developments with regards to the discovery of organic molecules at different locations in the solar system. First NASA announced the discovery of variations in methane concentrations on Mars, followed by the discovery of organic molecules in Martian mudstone. More recently it was revealed that the Cassini probe had observed even more massive organic molecules on Saturn’s moon Enceladus. What is it about these discoveries that point to the possibility of life elsewhere in the Solar-system?