Leftover light from the young universe has a major flaw, and we don't know how to fix it. It's the cold spot. It's just way too big and way too cold. Astronomers aren't sure what it is, but they ...

In 2004, astronomers examining a map of the radiation leftover from the Big Bang (the cosmic microwave background, or CMB) discovered the Cold Spot, a larger-than-expected unusually cold area of the ...

Researchers have created a 3D printed cosmic microwave background – a map of the oldest light in the universe – and provided the files for download. The cosmic microwave background (CMB) is a glow ...