Methane in Exoplanetary Atmosphere Could Be Sign of Extrarerrestrial Life

The case for methane as a biosignature stems from its instability within the planet’s ambiance. Because photochemical reactions destroy atmospheric methane, it should be steadily replenished to keep up excessive ranges. “Oxygen is usually talked about as the most effective biosignatures, nevertheless it’s most likely going to be arduous to detect with the NASA/ESA/CSA James Webb […]