See these 50 super-sized celestial gems

The Milky Way contains some really, really big stuff: supergiant stars, unimaginably huge emission complexes, molecular clouds, star clusters, dark nebulae, and more. Beyond lie more galaxies and clusters of galaxies. The true cosmic scale of these objects has only become known during the last century or so. Peering at them through a telescope isContinue reading “See these 50 super-sized celestial gems”

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