In 1936, infant star FU Orionis began gobbling material from its surrounding disc of gas and dust with a sudden voraciousness, eating the equivalent of 18 Jupiters in the last 80 years. During a three-month binge, as matter turned into energy, the star became 100 times brighter, heating the disc around it to temperatures of up to 6,650 °C.
The Atacama Pathfinder Experiment (APEX) is a 12-metre radio telescope for observations at submillimetre wavelengths, operating 5,100 metres above sea level in the Atacama Desert. On 25-26 January, the project’s 10th anniversary was celebrated at the APEX base station in Sequitor, San Pedro de Atacama. A number of special guests were present at the occasion.
An international scientific team using NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) has discovered a cloud produced by a supernova explosion 10,000 years ago that contains enough dust to make 7,000 Earths, showing that supernovae are capable of producing a substantial amount of the material from which planets can form.