This data is from our paper in Journal of Geophysical Research titled: "Space Weathering of FeS Induced Via Pulsed Laser Irradiation" Authors: B.S. Prince, M.P. Magnuson, L.C. Chaves, M.S. Thompson and M.J. Loeffler The data files are for: Figure 2 - data.txt: Reflectance of FeS pressed pellets compared to that of a loose powder. The columns are wavelength (micron), reflectance spectra for the unpressed powder, and pressed powders at the following pressures: 1000, 1500, 2000 2500, 3000, 3500, 4000, 5000, 7000, and 8000 psi. Figure 3 - NIR-data.txt: Reflectance of FeS during laser irradiation in the near-infrared. The columns are wavelength (micron) and reflectance after 0, 1, 2, 4, 8, 64, and 512 pulses. Figure 3 - Uv-vis-data.txt: Reflectance of FeS during laser irradiation in the ultraviolet-visible. The columns are wavelength (micron) and reflectance after 0, 1, 2, 4, 8, 64, and 512 pulses. Figure 4 Slope.txt: Changes in spectral slope for Figure 3. The columns are number of pulses, slope at 0.5, 1, and 2 microns. The last column is the average slope taken between 0.7 and 2 microns. Figure 4 - normalized reflected intensity.txt: Changes in the normalized reflected intensity for Figure 3. The columns are number of pulses, normalized reflected intensity at 0.5, 1, and 2 microns. Figure 5 - NIR-data.txt: Reflectance of FeS during vapor redeposition caused by laser irradiation in the near-infrared. The columns are wavelength (micron) and deposit thickness of: 0, 38, 75, 150, 450, and 750 nm. Figure 5 - Uv-vis-data.txt: Reflectance of FeS during vapor redeposition caused by laser irradiation in the ultraviolet-visible. The columns are wavelength (micron) and deposit thickness of: 0, 38, 75, 150, 450, and 750 nm. Figure 6 - slope.txt: Changes in spectral slope for Figure 5. The columns are number of pulses, slope at 0.5, 1, and 2 microns. The last column is the average slope taken between 0.7 and 2 microns. Figure 6 - normalized reflected intensity.txt: Changes in the normalized reflected intensity for Figure 5. The columns are number of pulses, normalized reflected intensity at 0.5, 1, and 2 microns. Figure 8 - Uv-vis-data.txt. Reflectance of FeS after 512 pulses at different orientations in the ultraviolet-visible. The columns are wavelength (microns) and the reflectance after 512 pulses (0 degrees) and after rotating the irradiated sample: 90 degrees, 180 degrees, and 270 degrees. Figure 8 - NIR-data.txt. Reflectance of FeS after 512 pulses at different orientations in the near-infrared. The columns are wavelength (microns) and the reflectance after 512 pulses (0 degrees) and after rotating the irradiated sample: 90 degrees, 180 degrees, and 270 degrees. These files are best read by importing them into microsoft excel, origin pro or an equilavent software. The columns are delimited by tab.