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James Webb Space Telescope Confirms Major Discovery of Water Ice in Alien Planetary System for the First Time
The James Webb Space Telescope has confirmed the presence of water ice in a planetary system beyond our own for the first time.
Intricately mixed amid fine dust particles in HD 181327’s surrounding debris, the water ice is believed to comprise miniature “dirty snowballs” that astronomers say are scattered throughout the star’s expansive disk. “When I was a graduate student 25 years ago, my advisor told me there should be ice in debris disks, but prior to Webb, we didn’t have instruments sensitive enough to make these observations,” said the study’s co-author, Christine Chen, of the Space Telescope Science Institute. Over time, collisions between icy bodies within HD 181327’s debris disk will continue to produce fine particles that Webb’s sensitive camera eyes can discern, leading to additional discoveries in the years to come.
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