Posts Tagged ‘ life ’

Xenobiology: Life as We Don’t Know It

By Kaleb Lyonnais

What does life require? The most common answer is carbon, water, and solar energy. Carbon is the basis of biochemistry: organic molecules are composed of functional groups bonded to carbon skeletons. Water is the solvent those molecules are dissolved in. Solar energy allows organisms to break apart and rearrange those molecules.

These work for Earth-based life, but circumstances may exclude these on other planets. To explore other options, it must be understood why carbon, water, and solar energy are important on Earth. This study is called xenobiology, and it helps the search for alien life by expanding the set of things being looked for. Continue reading

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