Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.
However, other details about CB 130–3 are more obvious in the image, which astronomers captured using Hubble's. For instance, the image demonstrates that the density of the molecular cloud isn't constant. The outer edges of CB 130–3 can be seen as tenuous wisps of gas that simply blur background stars. In stark contrast, the material at the heart of the molecular cloud is so dense that it entirely blocks the light from background stars.
The gas and dust of CB 130–3 also impact the color of the stars behind it as well as their brightness. The stars seen through the thick material closer to the heart of CB 130–3 appear to have taken on a redder hue than those shining through less dense material at the outer edges of the structure. And this reddening is more than an interesting cosmetic effect. Astronomers can use the change in color to map the density of CB 130–3, granting them insight into the structure of this stellar nursery.
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