Daily Archives: December 16, 2023

Supernova Remnant Cassiopeia A: Cool Images of Hot Gas 0 (0)

Webb’s high-resolution cameras are showing details that scientists have never seen before. That’s what I started talking about this week.

But the Cassiopeia A supernova’s underwhelming appearance, or maybe non-appearance, reminded me of famines, coffeehouses, and other malign menaces. Continue reading

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