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The star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 that extends one degree on the sky in the direction of the Scorpius constellation. Part of the nebula is ionised by the youngest (bluest) heavy stars in Pismis 24. The intense ultraviolet radiation from the blazing stars heats the gas surrounding the cluster and creates a bubble in NGC 6357. The presence of these surrounding gas clouds makes probing into the region even harder.

Spiral galaxy NGC 2613, captured on February 26, 2002, by the Very Large Telescope in Paranal, Chile (S. D’Odorico et al)

The Sombrero galaxy was voted best picture taken by the Hubble telescope. The dimensions of the galaxy, officially called M104, are as spectacular as its appearance. The Sombrero Galaxy spans about 50,000 light years across and lies 28 million light years away.

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