... Star Clusters . ... Stars@ESO . ... The remarkable heart-shaped bubble at the centre is created by Mira BтАЩs energetic wind inside Mira AтАЩs more relaxed outflow. ... By looking at stars like Mira A and Mira B scientists hope to discover how our galaxyтАЩs double stars differ from single stars in how they give back what they have created to the Milky WayтАЩs stellar ecosystem. ... Other old and dying stars also have bizarre surroundings, as astronomers have seen using both ALMA and other...