This composite image from 7 of JWST’s NIRCam filters shows the central part of galaxy cluster Abell 2744: Pandora’s Cluster. The three main cluster components are highlighted with insets, with foreground and background objects, totaling some ~50,000 of them, present in this 0.007 square degree patch of sky. (Credit: R. Bezanson et al., ApJ submitted, JWST UNCOVER Treasury Survey, 2023)
An incredible composite image of Pandora’s Cluster, Abell 2744, simultaneously showcases both our impressive knowledge and vast ignorance.
Although we’ve learned so much about the Universe since the dawn of the 20th century, there are a number of cosmic mysteries that…
