B:3. Is there life elsewhere in the universe?
For many centuries it has been thought that Earth was the only world capable of supporting life, and that the other planets within our Solar System and beyond were just far too hostile. We now know that where you find water, nutrients and an energy source such as heat from the Sun, then invariably you find life, even when the environmental conditions are extreme. Recent exploration missions such as those to Mars and the discovery of the many planets beyond our Solar System has shown that these life forming conditions do exist elsewhere in the Universe, and thus the search in on!