Brewing Up New Stars 🪄

Webb's unique view of the stellar nursery known as NGC 7129 reveals numerous stars formerly hidden in this cosmic cauldron. Stars begin their life in cold, dense regions of dust and gas, hiding from view of most telescopes. Webb’s high degree of infrared sensitivity allows astronomers to peer through dust to study these baby stars. In this image, we can see stars in various stages of development. The most mature and massive (about 5-8x the mass of our Sun) is the region’s bright central star. In the cavity on the left, appearing in gold, is the largest demonstration of its impact. The outflows from an earlier stage in the star’s development carve into the dense molecular cloud of hydrogen, and combine with the star’s light, causing it to glow. The region on the right, represented in red, hides much younger objects than those on the left: protostars. As the protostars accumulate matter and increase mass, they eject outflows of super heated material that interact with matter around the star, creating shocks that cause the textured appearance we see in this image. More protostar outflows are at upper left where a dark shadow is being cast by a protostar disk, visible against the surrounding nebula, depicted in blue. Seeing these different structures help astronomers study the star lifecycle in various stages, leading to a more complete understanding of our universe. Read more at the link in the comments. Image credit: #NASA, #ESA, #CSA, #STScI, Processing: #Alyssa Pagan.