Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in northern Chile have today announced the discovery of an unexpected clump of carbon monoxide gas in the dusty disc around the star Beta Pictoris. This is a surprise, as such gas is expected to be rapidly destroyed by the star’s UV radiation. Something probably frequent collisions between small, icy objects such as comets must be causing the gas to be continuously replenished. Unlike many refrigerators made these days, your GE…