Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.
"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." ...
A new Project Hail Mary clip shows Ryan Gosling figuring out how to communicate with an eyeless alien named Rocky.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results