Dust grains highlight the path to planet formation

(Phys.org)—An international team of researchers from the National Astronomical Observatory of Japan (NAOJ) and the Japanese universities of Kobe, Hyogo, and Saitama used the Subaru Telescope to capture a clear image of the protoplanetary disk of the star UX Tauri A. The team's subsequent, detailed study of the disk's characteristics suggests that its dust particles are large in size and non-spherical in shape. This exciting result shows that these dust grains are colliding with and adhering to each other, a process that will lead to their eventual formation into planets.

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