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Space photo of the week: James Webb telescope reveals mysterious 'light echo' in the broken heart of Cassiopeia
Beautifully captured by the James Webb Space Telescope (JWST), this image shows interstellar gas and dust lit up by a dead star in Cassiopeia.
What was the first thing scientists discovered? A historian makes the case for Babylonian astronomy
Science uses careful, organized observations and tests to construct theories that are recorded, passed on to others and built ...