Aliens – Friends or Foe?

Independence-Day-Movie-1280x720The image of visiting aliens as ruthless invaders hell-bent on destroying mankind in order to colonise our little blue planet for themselves, may be good for the Hollywood box-office, but how likely is it to reflect reality?

The deeper we delve into the cosmos, the more likely it appears that we not alone. Even if bio-genesis – the appearance of life from non-living chemical components – is a mind-numbingly rare event, the Universe is so vast, and the numbers of potential star systems so large, that even the slimmest odds could result in millions of occurrences. Continue reading “Aliens – Friends or Foe?”