Friday, 25 September 2020

Hubble Shoots the Moon


This image from 1991 shows Earth's Moon, with its dark basaltic mare, clearly visible in great detail. via NASA https://ift.tt/33UAinC

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An Eye-catching Star Cluster

Westerlund 1 is the biggest and closest “super” star cluster to Earth. Data from Chandra and other telescopes are helping astronomers delve...