A new study suggests that the coldest stars in the galaxy, particularly red dwarfs and white dwarfs, could be candidates for hosting alien megastructures like Dyson spheres.

Researchers propose that these stars might exhibit unique infrared signatures due to energy absorption by hypothetical structures, which would radiate excess heat in the infrared spectrum.

The study highlights that red dwarfs, with their long lifespans and small size, and white dwarfs, with their stable energy output, are prime targets for such structures.Unlike natural stars, Dyson spheres would lack dusty signatures and could produce unusual light variations.The James Webb Space Telescope's infrared capabilities make it ideal for detecting these potential technosignatures.

While no confirmed alien megastructures have been found, the research provides observational criteria for future searches, emphasizing the need to reevaluate seemingly ordinary stars for signs of advanced civilizations.The findings contribute to the ongoing debate about the existence of extraterrestrial technology and the search for intelligent life beyond Earth.