No Technosignature Detected on K2-18b; Study Advances Search Methods and Astrobiology Integration

To the point

While no convincing technosignatures were found on K2-18b with the VLA and MeerKAT, Tremblay and Bennett say the work shows how such searches fit into broader life-detection efforts and clarifies that current telescopes can only detect exceptionally strong transmissions, making a detection from any one planet very unlikely.

“Are we alone?” Scientists search one planet for alien signals
newsweek.com

“Are we alone?” Scientists search one planet for alien signals

Scientists say the findings of the new study may make future searches for extraterrestrial intelligence faster and more effective.