extraterrestrial life quotes

It’s time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to know if we are alone in the dark.

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.

The human race may be the only intelligent beings in the galaxy.

It’s important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it’s been possible, and that window could be open for a long time – hopefully it is – or it could be open for a short time. We should err on the side of caution and do something now.

I think it quite likely that we are the only civilization within several hundred light years; otherwise we would have heard radio waves.

We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet.