It's either aliens or a swarm of comets: scientists baffled by WTF 001, our galaxy's strangest starIt has been called the most bizarre star in our galaxy and some think it just might be home to high-tech aliens.
The unlikely suggestion that aliens live in this star system is being taken so seriously that a team of astrophysicists wants to train a radio telescope in its direction to determine if any signals could indicate advanced extraterrestrial life.
Andrew Siemion, director of the Search for Extraterrestrial Intelligence at the University of California, Berkeley, told Fairfax Media the star had become SETI's candidate number one.
One outlandish hypothesis suggests the star's light signal is caused by a Dyson sphere, an alien megastructure designed to capture solar energy. Photo: Artist's impression by CapnHack
"Aliens should always be the very last hypothesis you consider," Penn State astrophysicist Jason Wright told The Atlantic. "But this looked like something you would expect an alien civilisation to build."
The light from the star is "consistent with a swarm of megastructures" around it, he said.