Infrared dark clouds (IRDCs) are dark patches of cold dust and gas seen in the sky against the bright diffuse infrared glow of warm dust in our galaxy.
These IRDCs, massive and rich in molecules, are natural sites for star birth — one of the main reasons why astronomers are actively studying them.
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These IRDCs, massive and rich in molecules, are natural sites for star birth — one of the main reasons why astronomers are actively studying them.
Continued...
Source