I've always heard that the reason for this is that black bodies are denser than white bodies. Looking it up, it doesn't seem to be a huge difference though[1].

I've always heard that the reason for this is that black bodies are denser than white bodies. Looking it up, it doesn't seem to be a huge difference though[1]. [1] https://pubmed.ncbi.nlm.nih.gov/6735823/#:~:text=Based%20on%20our%20data%2C%20the,compared%20with%201.100%20in%20Whites https://pubmed.ncbi.nlm.nih.gov/6735823/#:~:text=Based%20on%....