What's the lifetime of a Dyson megaswarm? In 2015, astronomer Tabetha Boyajian and colleagues announced the discovery of unusual light fluctuations coming from a star about 1,500 light-years away. It came to be known as "Tabby's star" or "Boy...

What's the #lifetime of a #Dyson #megaswarm? #physics #space #alien #tech #energy #TabbysStar #Megastructure #Technosignature #DysonSphere #KesslerSyndrome #Kardeshev #Entropy #Time phys.org/news/2025-07...