The galaxy’s coldest “stars” may actually be alien megastructures

A new study explores how astronomers might detect Dyson swarms, which are hypothetical megastructures built by advanced civilizations to harvest stellar energy. Researchers suggest that red dwarfs and white dwarfs are the most likely candidates for these structures due to their longevity and compact size.
Why it matters
Identifying potential signatures of alien megastructures provides a concrete framework for the search for extraterrestrial intelligence using modern telescope technology.
Since physicist Freeman Dyson first proposed the idea in 1960, the hypothetical "Dyson sphere" has become one of the most intriguing concepts in the search for extraterrestrial intelligence. Rather than a single solid shell, scientists now envision a Dyson "swarm" made up of countless orbiting structures that capture nearly all of a star's energy.
The article reports on scientific research and theoretical physics without political or social commentary.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in