One of the most interesting baby planet systems in the Milky Way has just yielded a detection of water vapor.
The observed PDS 70 water spectrum compared against the expected spectrum .
Where the water comes from is unclear, but there are two options. It could have formed where it is, with the star itself, from a water-rich nebula; or it could have accumulated from the outer regions of the disk. The copious dust the team found in the inner disk could, the researchers say, have served as a shield that protected it from the star.."Still, it is likely that one mechanism plays a decisive role in sustaining the water reservoir of the PDS 70 disk. The future task will be to find out which one it is."
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