MEASURE THE BROADBAND AND SPECTRAL SOLAR ALBEDO OF MARS-LIKE CO2 AND H2O RADIATION FROSTS AND HOW THEY VARY WITH TIME AND WITH INTENSITY OF SIMULATED SOLAR RADIATION. 1. PURCHASE AND INSTALL THE SOLAR SIMULATOR LAMP 2. FABRICATE AND INSTALL THE ALBEDO REFERENCE SURFACE. ATTACH TO LINEAR MOTION VACUUM FEEDTHROUGH TO ENABLE MOVEMENT BETWEEN EXPOSED AND HIDDEN POSITIONS. 3. PURCHASE AND INSTALL BROADBAND VIS-IR POWER SENSOR MAKE FROST ALBEDO MEASUREMENTS 4. PURCHASE AND INSTALL FIBER OPTIC SPECTROMETER MEASURE SPECTRAL ALBEDO MEASUREMENTS MEASURE THE BROADBAND THERMAL EMISSIVITY OF MARS-LIKE CO2 AND H2O RADIATION FROSTS AND HOW THEY VARY WITH TIME AND FROST THICKNESS. 1. PURCHASE AND INSTALL THE THERMOPILE RADIOMETER WITH KBR WINDOW. 2. PURCHASE AND INSTALL DIFFERENT IR WINDOWS AND MIRROR ON ROTATIONAL MOTION FEEDTHROUGH 3. MEASURE PHYSICAL AND BRIGHTNESS TEMPERATURES DURING FROST GROWTH THROUGH EACH IR WINDOW DERIVE EMISSIVITY FOR CORRESPONDING IR BAND PASS MEASURE THE EFFECTS OF DUST ON ALBEDO OF CO2 AND H2O FROSTS 1. PURCHASE AND INSTALL THE ROTARY-LINEAR MOTION VACUUM FEEDTHROUGH 2. FABRICATE AND ATTACH THE DUST SIFTER APPARATUS TO THE FEEDTHROUGH ROD 3. GROW FROST ON PLASTIC SURFACE COVERING SOIL SPRINKLE DUST ON FROST MEASURE ALBEDO (BEFORE&AFTER) OBSERVE FROST/DUST EVOLUTION DURING SUBLIMATION USING FIBERSCOPE 4. AFTER EXPERIMENT MEASURE DUST AMOUNT LEFT ON PLASTIC SURFACE (AND SURROUNDINGS) MEASURE AND OBSERVE THE EFFECTS OF H2O FROST ON CO2 FROST ALBEDO EMISSIVITY AND GROWTH 1. ADJUST WATER VAPOR CONTENT OF GAS INFLOW TO FORM H2O FROST LAYER DURING GROWTH OF CO2 FROST MONITOR IR EMISSIVITY DURING AND AFTERWARD AS NEW CO2 FROST FORMS 2. REPEAT (1) DURING SUBLIMATION OF CO2 FROST MONITOR ALBEDO AND MORPHOLOGY EFFECTS OBSERVE THE EFFECTS OF SUBSTRATE TOPOGRAPHIC VARIATIONS ON CO2 FROST GROWTH 3. 3-D PRINT SURFACES WITH TOPOGRAPHIC VARIATIONS AT DIFFERENT AMPLITUDES AND WAVELENGTHS. 4. GROW FROST ON THESE SURFACES AND IMAGE THE EVOLVING TEXTURE USING FIBERSCOPE AND CAMERA