Infrared image of the star-forming region W5 (IC 1848), part of the Heart and Soul Nebulas in Cassiopeia. Red shows heated dust; white and green show dense gas clouds. Older stars in the center trigger younger star formation at the edges via compressed gas. Image from the Spitzer Space Telescope.

Astronomy Picture from 16/09/2008

W5: Pillars of Star Creation

Source: https://apod.nasa.gov/apod/ap080916.html


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