How scientists are using exoplanets to map out ‘polka dots’ on stars Scientists have developed a new technique that could help them understand "polka dot" stars using the transits of exoplanets. Astrobitica August 27, 2025 (Last updated: August 27, 2025) 1 minute read Scientists have developed a new technique that could help them understand “polka dot” stars using the transits of exoplanets. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Best Nikon lenses in 2025 — wide-angle, telephoto, prime and zoom lensesNext: A blaze of glory: SpaceX’s starship goes the distance in tenth flight test