「聖誕燈」星系揭示了宇宙是如何形成的

A fascinating discovery has been made in the field of astronomy that has left scientists buzzing with excitement. The Firefly Sparkle galaxy, a newly identified galaxy, has been captured in stunning detail by NASA's James Webb Space Telescope. This galaxy is remarkable because it consists of ten vibrant star clusters that are forming in the very early stages of the Universe. For the first time, scientists have been able to observe what our galaxy might have looked like during its formation, and the image has sparked a sense of wonder among space scientists. Prof Catherine Heymans, who holds the title of Scotland's Astronomer Royal, expressed her delight, stating, 'I just love the sparkle galaxy with its Christmas lights shining as it was when the Universe was just 600 million years old. ' The image reveals clusters of stars in various colors, resembling Christmas tree ornaments suspended in the vastness of space. This groundbreaking discovery is significant because it provides valuable insights into the formation of galaxies like our own Milky Way. The distant galaxy has been aptly named Firefly Sparkle due to its resemblance to a swarm of colorful fireflies. The James Webb Space Telescope, known for its unparalleled power, has already provided us with incredible images of the cosmos, but this is the first time we have witnessed the early stages of a galaxy's formation in such detail. Dr Lamiya Mowla, a co-leader of the research from Wellesley College in Massachusetts, noted, 'The data of what happened at this stage of the Universe is very sparse. ' This means that there has been limited information available about how galaxies formed in the early Universe. However, with this new discovery, scientists are now able to observe a galaxy being formed, piece by piece, which is a remarkable achievement. Prof Heymans described the discovery as 'gorgeous, scientifically important and extremely festive. ' She finds it astonishing that humans have constructed a telescope capable of peering so far back in time, allowing us to witness the early phases of galaxy formation in such a beautifully festive manner. The star clusters within the Firefly Sparkle galaxy exhibit different colors because they are at various stages of their formation. Dr Mowla explained, 'It is so beautiful because the early life of a galaxy is extremely active. ' The galaxy is situated within a massive cluster of thousands of glimmering galaxies, as detected by the James Webb Space Telescope. In the image captured by NASA's telescope, we can see a multitude of shining galaxies set against the dark backdrop of space. A red circle in the image indicates the location of the Firefly Sparkle galaxy within this cluster. Dr Mowla elaborated, 'There is so much happening, there are new stars being born, there are massive stars dying, there is a lot of gas and dust around it and there is nitrogen and oxygen. ' These elements contribute to the stunning colors observed in the galaxy. Scientists can glean information about the ages of each star cluster, their elemental composition, and the temperatures at which they formed. When Dr Mowla first encountered the Firefly Sparkle galaxy, she was struck by the vivid and diverse colors of the star clusters. This led her to believe that there was something unique about this system, prompting her to investigate its distance. To her astonishment, she discovered that it is located more than 13 billion light years away. This means that the light from the Firefly Sparkle galaxy has taken over 13 billion years to reach us. Its small size and great distance would have made it invisible to the James Webb Space Telescope without a fortunate cosmic event. A cluster of galaxies positioned between the Firefly Sparkle galaxy and the telescope distorted the light, allowing scientists to observe it more clearly. This phenomenon is known as gravitational lensing. Dr Kartheik Iyer, a co-leader of the research team from Columbia University in New York, explained, 'It takes the light coming from the firefly and bends it and amplifies it so we can see it in glorious detail. ' This discovery enables scientists to witness the formation of the first galaxies similar to our Milky Way. Dr Iyer expressed the sentiment, 'When it does all this and we are able to see this incredible faraway galaxy, it is a very humbling, magical feeling.