Researchers from the SETI project have found that alien radio signals are distorted by stellar winds and flares, making them hard to detect.
The study published in The Astrophysical Journal suggests that narrowband signals, traditionally targeted by SETI, may become blurred before leaving their star system.
Solar activity amplifies distortion, especially around red dwarf stars, the most common in the galaxy.
Current algorithms focus on overly clean signals, while real signals undergo significant changes. This may explain the lack of contact.
