JWST images a pair of planet-forming discs

by Neamow

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  1. Source: https://www.esa.int/Science_Exploration/Space_Science/Webb

    *”This visual highlights Webb’s views of the protoplanetary discs Tau 042021 (left) and Oph 163131 (right).*

    *Protoplanetary discs like these appear around stars that have recently been born. When a clump of gas inside a larger molecular cloud collapses to form a star, unused gas and dust is left orbiting the star in a thick disc. Over time, this dust too collides and collapses, slowly forming planetesimals which can, in turn, develop into planets.*

    *The unique feature these two objects have in common is that, as we see them from our vantage point with Webb, they are oriented with the edge of the disc facing us. This means that the bright light from the young star in the centre is mostly blocked, and we see the fine dust that has risen out of the disc as a nebula above and below the disc, lit by reflected light from the star.”*