LOW TEMPERATURE DETECTORS PROMISE DRAMATIC ADVANCES IN ENERGY RESOLUTION AND PIXEL COUNT OVER CONVENTIONAL X-RAY DETECTORS FOR FUTURE NASA X-RAY MISSIONS. IN THIS PROPOSED RESEARCH WE SEEK TO DEVELOP AND OPTIMIZE A NEW KIND OF SUPERCONDUCTING X-RAY DETECTOR KNOWN AS A THERMAL KINETIC INDUCTANCE DETECTOR (TKID). THESE DETECTORS COULD EVENTUALLY HAVE THE ENERGY RESOLUTION OF THE MORE MATURE TRANSITION EDGE SENSORS (TESS) BUT WITH THE ABILITY TO EASILY MULTIPLEX TO MUCH LARGER PIXEL COUNTS. WE WILL WORK TO IMPROVE THE TKID ENERGY RESOLUTION TO BELOW 5 EV AT 6 KEV DEVELOP MUSHROOM ABSORBERS TO ACHIEVE HIGH FILL FACTOR AND INTEGRATE THESE DETECTORS INTO A 1 KPIX ARRAY. WE WILL ALSO DEVELOP NEW READOUT FIRMWARE FOR OUR EXISTING UVOIR MKID READOUTS TO ENABLE READING OUT THESE 1 KPIX X-RAY TKID ARRAYS.