The new observations provide further evidence that Earth's water was delivered by ancient space rocks.
The James Webb Space Telescope detected water around a rare comet in the main asteroid belt located between Jupiter and Mars.
The new observation marks another scientific breakthrough for Webb as it is the first time gas — here in the form of water vapor — has been observed surrounding a main belt asteroid. The new discovery suggests that water may have been preserved as ice in the main asteroid belt during the early evolution of the Solar System.
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James Webb telescope discovers ancient 'water world' in nearby star systemBriley Lewis (she/her) is a freelance science writer and Ph.D. Candidate/NSF Fellow at the University of California, Los Angeles studying Astronomy & Astrophysics. Follow her on Twitter briles_34 or visit her website www.briley-lewis.com.
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