![](\"http:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2016\/05\/the_little_fox_and_the_giant_stars\/15997421-1-eng-GB\/The_Little_Fox_and_the_Giant_Stars_small.jpg\")
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\nNew stars are the lifeblood of our Galaxy, and there is enough material revealed by this Herschel<\/a> infrared image to build stars for millions of years to come.\n<\/p>\n \nSituated 8000 light-years away in the constellation Vulpecula \u2013 latin for little fox \u2013 the region in the image is known as Vulpecula OB1. It is a \u2018stellar association\u2019 in which a batch of truly giant \u2018OB\u2019 stars is being born.\n<\/p>\n \nThe vast quantities of ultraviolet and other radiation emitted by these stars is compressing the surrounding cloud, causing nearby regions of dust and gas to begin the collapse into more new stars. In time, this process will \u2018eat\u2019 its way through the cloud, transforming some of the raw material into shining new stars.\n<\/p>\n \nThe image was obtained as part of Herschel\u2019s Hi-GAL<\/a> key-project. This used the infrared space observatory\u2019s instruments<\/a> to image the entire galactic plane<\/a> in five different infrared wavelengths.\n<\/p>\n \nThese wavelengths reveal cold material, most of it between -220\u00baC and -260\u00baC. None of it can be seen at ordinary optical wavelengths, but this infrared view shows astronomers a surprising amount of structure in the cloud\u2019s interior.\n<\/p>\n \nThe surprise is that the Hi-GAL survey has revealed a spider\u2019s web of filaments<\/a> that stretches across the star-forming regions of our Galaxy. Part of this vast network can be seen in this image as a filigree of red and orange threads.\n<\/p>\n \nAt visual wavelengths, the OB association is linked to a star cluster catalogued as NGC 6823. It was discovered by William Herschel in 1785 and contains 50\u2013100 stars. A nebula emitting visible light, catalogued as NGC 6820, is also part of this multi-faceted star-forming region.\n<\/p>\n \nThe giant stars at the heart of Vulpecula OB1 are some of the biggest in the Galaxy. Containing dozens of times the mass of the Sun, they have short lives, astronomically speaking, because they burn their fuel so quickly.\n<\/p>\n \nAt an estimated age of two million years, they are already well through their lifespans. When their fuel runs out, they will collapse and explode as supernovas. The shock this will send through the surrounding cloud will trigger the birth of even more stars, and the cycle will begin again.<\/p>\n","protected":false},"excerpt":{"rendered":" \nNew stars are the lifeblood of our Galaxy, and there is enough material revealed by this Herschel<\/a> infrared image to build stars for millions of years to come.\n<\/p>\n \nSituated 8000 light-years away in the constellation Vulpecula – latin for little fox – the region in the image is known as Vulpecula OB1. It is a ‘stellar association’ in which a batch of truly giant ‘OB’ stars is being born.\n<\/p>\n \nThe vast quantities of ultraviolet and other radiation emitted by these stars is compressing the surrounding cloud, causing nearby regions of dust and gas to begin the collapse into more new stars. In time, this process will ‘eat’ its way through the cloud, transforming some of the raw material into shining new stars.\n<\/p>\n \nThe image was obtained as part of Herschel’s Hi-GAL<\/a> key-project. This used the infrared space observatory’s instruments<\/a> to image the entire galactic plane<\/a> in five different infrared wavelengths.\n<\/p>\n \nThese wavelengths reveal cold material, most of it between -220ºC and -260ºC. None of it can be seen at ordinary optical wavelengths, but this infrared view shows astronomers a surprising amount of structure in the cloud’s interior.\n<\/p>\n<\/p>\n