James Webb Space Telescope Discovery
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Webb Detects Water Vapor in Rocky Planet-Forming Zone
New measurements from the NASA/ESA/CSA James Webb Space Telescope’s Mid-InfraRed Instrument (MIRI) have indicated the presence of water vapour in the inner disc of the system PDS 70, located 370 light-years away. This is the first detection of water in the terrestrial region of a disc already known to host two or more protoplanets.
This spectrum of the protoplanetary disk of PDS 70, obtained with Webb’s MIRI instrument, displays a number of emission lines from water vapour.
Credit: NASA, ESA, CSA, J. Olmsted (STScI)
Water in protoplanetary disc of PDS 70 (MIRI emission spectrum)
This artist concept portrays the star PDS 70 and its inner protoplanetary disc. New measurements from the NASA/ESA/CSA James Webb Space Telescope’s Mid-InfraRed Instrument (MIRI) have indicated the presence of water vapour in the inner disc of the system PDS 70, located 370 light-years away. This is the first detection of water in the terrestrial region of a disc already known to host two or more protoplanets, one of which is shown at upper right.
Credit: Phys.org
