47 Tucanae is the second-brightest globular cluster in the night sky, a dazzling ball of up to a million ancient stars packed so tightly that its blazing core looks like a single fuzzy star to the naked eye. Famous for harboring one of the richest known swarms of millisecond pulsars and a possible central black hole, this 13-billion-year-old relic is a favorite hunting ground for Hubble's searches for stellar oddballs and exoplanets.

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Deep-sky object

Beehive Cluster

Another cosmic wonder

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Double Cluster

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Deep-sky object

Hercules Globular Cluster

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Deep-sky object

Messier 3

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Deep-sky object

Omega Centauri

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Deep-sky object

Pleiades

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