In Euclid’s image of spiral galaxy IC342, the locations of several globular clusters are shown. Globular clusters are compact collections of hundreds of thousands of stars held together by gravity. Globular clusters tend to be old, with red colors, while star clusters may be less compact and blue. In spiral galaxies, like our Milky Way, these globular clusters are mostly found in the galactic halo.
Read more about Euclid’s view of spiral galaxy IC 342
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[Image description: A big spiral galaxy is visible face-on in white/pink colours at the centre of this square astronomical image. The galaxy covers almost the entire image and appears whiter at its centre where more stars are located. Its spiral arms stretch out across the image and appear fainter at the edges. The entire image is speckled with stars ranging in colour from blue to white to yellow/red, across a black background of space. Blue stars are younger and red stars are older. A few of the stars are a bit larger than the rest, with six diffraction spikes.]