The extraterrestrial imperative

Extraterrestrial microbiology.

I N T H E E F F O R T of devising ways and means of studying the existence of living organisms on other planets, attention must be focussed on microorganisms. This is not entirely due to professi,onal prejudice of microbiology, but is the consequence of accepted realization that microorganisms are responsible for the major amount of turnover of matter on earth and that life of the higher plants...

Extraterrestrial nucleobases in the Murchison meteorite

Article history: Carbon-rich meteorites, car Received 26 October 2007 Received in revised form 7 March 2008 Accepted 11 March 2008 Available online 20 March 2008 Editor: R.D. van der Hilst

Advancing the Search for Extraterrestrial Intelligence

The natural holistic imperative.

Biodiversity is nature's expression of the principle of holism. This 'natural holistic imperative' is manifested in all aspects of the environment. While environmental health originated through a concern for protecting humans from environmental risks, it is now concerned with protecting the environment from the activities of humans. In order to protect the health of humans, there is a need to b...

The human component in extraterrestrial flights.