DR. LINDSAY P. KELLER is a Lunar and Planetary Scientist and manager of the Electron Beam Analysis Laboratories at the Johnson Space Center (JSC). His research interests include the nature and origin of early solar system materials (e.g. comets) and interstellar dust, as well as the mineralogy of meteorites and the surface dust on the Moon. These materials are studied using high-resolution transmission electron microscopes to make mineralogical and chemical measurements at the nanometer-scale.

Lindsay received his B.S. in Geology (1983) and M.S. in Soil Science (1985) from North Dakota State University where he studied the mineralogy and phase equilibria of soil evaporite minerals. He completed his Ph.D. in Geology (1989) at Arizona State University. His dissertation was titled "Aqueous Alteration of CV3 and CO3 Carbonaceous Chondrites: Transmission Electron Microscope Studies". Lindsay was a National Research Council Fellow at JSC from 1990-1993 and worked for several years in the private sector as a consultant on electron microscopy of advanced materials. Lindsay joined NASA in 2000.
Some selected publications:

Keller, L. P., Hony, S., J. P. Bradley, J. Bouwman, F. J. Molster, L. B. F. M. Waters, D. E. Brownlee, G. J. Flynn, T. Henning and H. Mutschke (2002) Identification of iron sulfide grains around protostars and in protoplanetary disks, Nature, in press.

Messenger, S., Keller, L. P. and R. M. Walker (2002) Discovery of abundant interstellar silicates in cluster IDPs. XXXIII Lunar and Planetary Science Conference, in press.

Pieters, C. M., L. A. Taylor, S. K. Noble, L. P. Keller, B. Hapke, R. V. Morris, C. C. Allen, D. S. McKay, and S. Wentworth (2000) Space weathering on the airless bodies: A mystery resolved with lunar samples. Meteoritics and Planetary Science, 35, 1101-1107.

Flynn, G. J., L. P. Keller, C. Jacobsen, S. Wirick, and M. A. Miller (2000) Organic carbon in Interplanetary Dust, In A New Era in Bioastronomy, ASP Conference Series, 213, 191-194.

Keller, L. P., S. Messenger, and J. P. Bradley (2000) Analysis of a deuterium-rich interplanetary dust particle and implications for presolar materials in IDPs. Journal of Geophysical Research - Space Physics, 105, A5, 10,397-10,402.

Bradley, J. P., L. P. Keller, T. Snow, G. J. Flynn, J. Gezo, D. E. Brownlee, M. S. Hanner, and J. Bowie (1999) An infrared spectral match between GEMS and interstellar amorphous silicates. Science, 285, 1716-1718.

Keller, L. P. (1998) A TEM study of iron carbides in the fine-grained matrix of the Semarkona unequilibrated ordinary chondrite. Meteoritics and Planetary Science, 33, 915-921.

Keller, L. P. and D. S. McKay (1997) The nature and origin of rims on lunar soil grains. Geochimica et Cosmochimica Acta, 61, 2331-2340.

Keller, L. P. and D. S. McKay (1993) Discovery of vapor deposits in the lunar regolith. Science 261, 1305-1307.

Keller, L. P. and P. R. Buseck (1991) Calcic micas in the Allende meteorite: Evidence for hydration reactions in the early solar nebula. Science 252, 946-949.