NASA's Hubble Space Telescope has imaged the outstretched arms of a massive spiral galaxy about 100 million light-years away in the constellation Camelopardalis.

This galaxy is about 200,000 light years across, about twice the size of our Milky Way galaxy, and has a similar shape and composition. Young stars appear blue on the outskirts of the galaxy, while older stars appear red towards the centre.

Image descriptions:

Image 1: The blue spiral arms of the blue galaxy radiate from the centre of the galaxy towards the right side of the image and glow yellow-white. Galaxies and stars are in the foreground.

Second image: On the left side of the image, a faint yellow glow is seen coming from the centre of the galaxy, and the blue spiral arms of the galaxy form semicircles that ripple outwards.