The frigid Flying Saucer

Astronomers have used the ALMA and IRAM telescopes to make the first direct measurement of the temperature of the large dust grains in the outer parts of a planet-forming disc around a young star. By applying a novel technique to observations of an object nicknamed the Flying Saucer they find that the grains are much colder than expected: -266 degrees Celsius. This surprising result suggests that models of these discs may need to be revised. —> Read More