That's not all, folks.

Using a satellite called the Wilkinson Microwave Anisotropy Probe (WMAP) stationed millions of kilometres from the Earth, scientists built up the most detailed map of the sky to date, showing the temperature variations in microwave radiation from the young universe, as of February 2004. From this they extracted information about the cosmos that was far more precise and supportive of the standard model than anything seen before. According to the author, effective though the standard model is at explaining key observations, it still has a soft underbelly of assumptions. The WMAP team itself has reported microwave cooling close to the centres of galaxy clusters, and taken this into account. But the author's research detects microwave cooling so far out from cluster centres that it raises the possibility that even clouds of gas adrift in the space between galaxy clusters may distort the microwave background.