2024-06-27 13:27:24

Scientists have found a new way of discovering if alien life exists on a planet.

Researchers at the University of California, Riverside (UCR) have discovered that signatures of greenhouse gases – such as methane, ethane and propane – would be a major sign that a planet has been terraformed (artificially altered) by another form of life.

Scientists conducted simulations on a hypothetical planet and discovered that NASA’s James Webb Space Telescope could spot the gases easily.

UCR astrobiologist and lead author of the study Edward Schwieteman said: “For us, these gases are bad because we don’t want to increase warming.

“But they’d be good for a civilisation that perhaps wanted to forestall an impending ice age or terraform an otherwise uninhabitable planet in the system, as humans have proposed for Mars.”

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