For a long time, scientists thought that only actively star-forming galaxies should be observed in the very early Universe. The James Webb space telescope now reveals that galaxies stopped forming ...
Saturn is below Venus and very low in the predawn sky. In late April it is five degrees above the horizon. You may need ...
Robertson (UC Santa Cruz), B. Johnson (CfA), S. Tacchella (Cambridge), P. Cargile (CfA) In their youth, galaxies are full of early stars, largely consisting of light elements like hydrogen and helium.
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