Because carbon has the richest chemistry, making it the most likely basis for life: https://blogs.scientificamerican.com/lab-rat/shine-on-you-crazy-diamond-why

Because carbon has the richest chemistry, making it the most likely basis for life: https://blogs.scientificamerican.com/lab-rat/shine-on-you-crazy-diamond-why-humans-are-carbon-based-lifeforms/ https://blogs.scientificamerican.com/lab-rat/shine-on-you-cr...