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Image of the star cluster NGC 3532. Many bright stars of varying colours shine against a dark red and black backdrop of space.
The MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile has captured a richly colourful view of the bright star cluster NGC 3532. Some of the stars still shine with a hot bluish colour, but many of the more massive ones have become red giants and glow with a rich orange hue.
ESO
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Attribution (CC BY 4.0)