History of Human Space Exploration
Within each human cell lies the blueprint for the human body and mind. Genes control how we look, sound and even think. Hence the key to the future of humanity lies within each cell. DRD4-7R is not just another gene among thousands. It regulates dopamine and is associated with risk-taking behaviour in modern humans. When this gene was present in more than 50% of our ancestors, they tended to be more explorative. Hence this gene is rightly called the 'Explorer' gene. Human migration across continents from Africa can be associated with the presence of this gene in the ancestral population. Humans are hence unique in this curiosity to explore the Earth. The exploration of space can be seen as an extension of this effect. Robert Goddard with a liquid oxygen-gasoline cylinder credits: Esther C. Goddard, Public domain, via Wikimedia Commons Space has always enticed humans. We began by naming and identifying the stars and planets spread across the night sky. Though rockets were f...
