Anyone who has experienced the blistering pain associated with biting into a fresh apple pastry or taking a swig of hot coffee can attest to the importance of blowing on your food or drink before introducing it to your mouth.
It turns out that black holes may perform the cosmic equivalent of this routine, "blowing" on blistering hot matter before they gobble it down.
This supermassive black hole-food cooling process was discovered by astronomers using NASA's Chandra X-ray telescope and the Very Large Telescope (VLT) to observe some of the universe's most massive black holes at the hearts of seven galaxy clusters.
