As each of his birthdays, NASA released images from the telescope. The video of this year shows the splendid Nebula, a nebula located more than 8,000 light years away in the constellation Cassiopeia.
This bubble of gas and dust was created by the stellar wind of the star that lies in its center. Make no mistake, the colors visible on the screen are not those that we could observe with the naked eye. They actually reflect the composition of the nebula: blue for oxygen, green to hydrogen, and red to nitrogen.To the naked eye, Nebula would rather greyish. It’s still prettier as well.
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