Postcard DE-12863902

Pismis 24
The nebula NGC 6357 is 8000 light-years from Earth, in the constellation Scorpius. The central part of NGC 6357 spans 10 light years and is home to the star cluster Pismis 24, which houses bright blue stars - some of the most massive stars we know of.
https://ru.wikipedia.org/wiki/Pismis_24-1