Is a New Form of Life Really So Alien?

The idea of discovering a new form of life has not only excited astronomers and astrobiologists for decades, but also the wider public. The notion that we are the only example of a successful life form in the galaxy has, for many, seemed like an unlikely statistic, as we discover more and more habitable planetary bodies and hear yet more evidence of life’s ability to survive in extreme conditions. A new essay, Read More →

Intelligent Life in the Universe

Source: antwrp.gsfc.nasa.gov

We cannot completely discount the possibility that alien life will look or act like us, not least of all given the statistical probabilities. The laws of natural selection alone may no longer govern humans; however, whilst cloning and gene manipulation may allow human enhancement and the curing of disease, we are still constrained by the physiological limitations hard-coded into our genes. Other carbon-based life forms might utilize the same chemical structures (DNA or even RNA) as information carriers, especially with these molecules found in abundance throughout the interstellar medium. On the other hand they may be completely different. Extrapolate to the practical applications of, say, superstring physics (if it’s right) and maybe they can put their intelligence into non-biological forms. Arthur C. Clarke said that what they could do would be like magic to us. Read More →