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.
Stars are born inside a rotating cloud of interstellar gas and dust. Before finding itself on the star, however, most of the cloud lands onto a circumstellar disc forming around the star. The manner in which the material is transported through the disc onto the star, causing the star to grow in mass, has recently become a major research topic in astrophysics.