After five years of staring unblinking at the sky, the Atacama Cosmology Telescope (ACT) has compiled the most detailed map we've ever seen of the cosmic microwave background – the faint light that ...
In this image, three wavelengths of light have been combined to highlight the Milky Way (purple) and cosmic microwave background (gray). ACT COLLABORATION; ESA/PLANCK COLLABORATION It’s hard to ...
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