Title:
A star-making cloud called M17, or the Swan nebula. Located about 6,000 light-years away in the constellation Sagittarius. Spitzer Space Telescope.
Caption:
A star-making cloud called M17, or the Swan nebula. Located about 6,000 light-years away in the constellation Sagittarius. Spitzer Space Telescope. (Photo by: Universal History Archive/UIG via Getty Images)