Gas in planet-forming discs, which provides fuel for giant planets to form, disperses in just a few million years, according to new research by an international team including UCL astronomers. The researchers looked at 30 discs of gas and dust around Sun-like stars to measure gas disc masses at different ages. They used the powerful Atacama Large Millimeter/submillimeter Array (ALMA), a radio telescope consisting of 66 massive antennas spread across the Chilean Andes. Their observations, to be