Overview

• Scientists identify five artificial greenhouse gases detectable by telescopes like the James Webb Space Telescope.
• These gases, including sulfur hexafluoride, have extreme warming potential and long lifespans.
• Finding such gases in exoplanet atmospheres may indicate technological activity and terraforming efforts.
• The study focused on the TRAPPIST-1 system, a group of rocky planets 40 light-years away.
• Researchers highlight the potential of current and future telescopes to detect these technosignatures.