Credit: NASA, ESA, CSA, J. Olmsted (STScI)
A spectrum of the protoplanetary disk of PDS 70, obtained with Webb’s MIRI (Mid-Infrared Instrument), displays a number of emission lines from water vapor. Scientists determined that the water is in the system’s inner disk, at distances of less than 100 million miles from the star – the region where rocky, terrestrial planets may be forming.