A remarkably detailed image obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) reveals the uneven surface of Betelgeuse, the famous red supergiant in the constellation Orion. The observations show bright hotspots and an irregular, corrugated outline shaped by the enormous motions taking place within the star. Located roughly 600 light-years from Earth, Betelgeuse is one … Continue reading ALMA Reveals Long-Lived Hotspots on Betelgeuse’s Bubbling Surface