Our galactic neighbors
The "lifestyles" of 75 neighboring galaxies are illuminated in this poster from NASA's Spitzer Space Telescope.
In this composite, blue colors reveal light from an older population of stars. Tints of green represent organic molecules called polycyclic aromatic hydrocarbons, while red lumps show clouds of warm dust and gas heated by radiation from newborn stars.
CREDIT:NASA/JPL-Caltech/K. Gordon (Space Telescope Science Institute) and SINGS Team
No comments:
Post a Comment