Stars hatched by a swan 🌟 Our WISE telescope captured this image, released in June 2011, of a huge complex of star-forming clouds and stellar clusters in the constellation Cygnus. Star clusters are groups of stars that share an origin, forming at roughly the same time and location, and are tied together by gravity for up to millions or even billions of years. Different types of stars have different life spans, so clusters will change over time as stars evolve. Some clusters might contain big, hot, O-type stars. Others might hold smaller, cooler stars that age and change over billions of years. Star clusters can contain anywhere from as few as a dozen stars to upwards of millions, and those stars can be spread out over a few light-years to hundreds of light-years. WISE (Wide-field Infrared Survey Explorer) was an infrared-wavelength astronomical space telescope. It was placed into hibernation in February 2011, having completed its primary astrophysics mission. Then, in 2013, the spa...