Stars Gather in ‘Downtown’ Milky Way
This image taken by the Spitzer Space Telescope shows the large number of stars crowding the galactic center of our Milky Way galaxy.
The green features are from carbon-rich dust molecules, called polycyclic aromatic hydrocarbons, which are illuminated by the surrounding starlight as they swirl around the galaxy’s core. The yellow-red patches are the thermal glow from warm dust. The polycyclic aromatic hydrocarbons and dust are associated with bustling hubs of young stars. These materials, mixed with gas, are required for making new stars.
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