Tabby’s star is probably just dusty, and still not an alien megastructure

New analyses suggest the object might have an odd stellar cycle or be shrouded in tiny particles

illustration of a ring of debris

SLOW FADE  Tabby’s star dims strangely over the course of days and years. Explanations have ranged from a destroyed planet to a ring of debris (shown in this artist’s illustration), but new studies suggest that clouds of dust or a strange stellar cycle might be more likely.