What chemical substances do scientists hope to detect to find evidence of life on exoplanets?

Answer

Oxygen, methane, and carbon dioxide

Future scientific efforts aim to identify biosignatures such as oxygen, methane, and carbon dioxide in the atmospheres of distant exoplanets. The presence of these gases could serve as strong indicators of whether a planet is simply a barren rock or a world characterized by dynamic, potentially biological, chemistry.

What chemical substances do scientists hope to detect to find evidence of life on exoplanets?

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