Thomas, N.; Britt, D. T.; Herkenhoff, K. E.; Murchie, S. L.; Semenov, B.; Keller, H. U.; Smith, P. H.: Observations of Phobos, Deimos, and Bright Stars with the Imager for Mars Pathfinder. Journal Geophysical Research 104, pp. 9055 - 9068 (1999)
Thomas, N.; Markiewicz, W. J.; Sablotny, R. M.; Wuttke, M. W.; Keller, H. U.; Johnson, J. R.; Reid, R. J.; Smith, P. H.: The color of the Martian sky and its influence on the illumination of the Martian surface. Journal Geophysical Research 104, pp. 8795 - 8808 (1999)
Titov, D. V.; Markiewicz, W. J.; Thomas, N.; Keller, H. U.; Sablotny, R. M.; Tomasko, M. G.; Lemmon, M. T.; Smith, P. H.: Measurements of the atmospheric water vapor on Mars by the Imager for Mars Pathfinder. Journal Geophysical Research 104, pp. 9019 - 9026 (1999)
Axford, W. I.; Marsch, E.; Oraevsky, V. N.; Kuznetsov, V. D.; Breus, T. K.; Schwenn, R.; Ip, W.-H.; Ksanfomality, L. V.; Thomas, N.; Kogan, A.et al.; Utkin, V. F.; Uspensky, G. R.: Space mission for exploration of the Sun, Mercury and inner heliosphere (``InterHelios''). Advances in Space Research 21, pp. 275 - 289 (1998)
Bell, J. F.; Thomas, N.; the Mars Pathfinder Team: Preliminary Science Results from the Mars Pathfinder Mission. Publications of the Purple Mountain Observatory 17, pp. 20 - 30 (1998)
Kramm, J. R.; Thomas, N.; Keller, H. U.; Smith, P. H.: The CCD imager electronics of the Mars Pathfinder and Mars Surveyor cameras. IEEE Trans. Instr. Meas. 47 (5), pp. 1112 - 1118 (1998)
Ksanfomality, L. V.; Breus, T. K.; Oraevsky, V. N.; Kuznetsov, V. D.; Axford, W. I.; Ip, W.-H.; Thomas, N.; Kogan, A. Y.: Investigations of Mercury using the 'Solar-Mercury Observer' (InterHelios). Advances in Space Research 19, pp. 1625 - 1628 (1997)
Marsch, E.; Axford, W. I.; Ip, W.-H.; Thomas, N.; Schwenn, R.; Oraevsky, V. N.; Kuznetsov, V. D.; Breus, T.; Ksanfomality, L. V.; Kogan, A. Y.: InterHelios-Sun and Mercury Observer. Physics and Chemistry of the Earth 22, pp. 469 - 479 (1997)
Smith, P. H.; Tomasko, M. G.; Britt, D.; Crowe, D.; Reid, R.; Keller, H. U.; Thomas, N.; Gliem, F.; Rueffer, P.; Sullivan, R.et al.; Greeley, R.; Knudsen, J. M.; Madsen, B. M.; Gunnlaugsson, H. P.; Hviid, S.; Goetz, W.; Soderblom, L.; Gaddis, L.; Kirk, R.: The Imager for Mars Pathfinder experiment. Journal Geophysical Research 102, pp. 4003 - 4025 (1997)
Thomas, N.; Keller, H. U.; Markiewicz, W. J.; Smith, P. H.: Observations of Martian aerosols with the Imager for Mars Pathfinder. Advances in Space Research 19, pp. 1271 - 1276 (1997)
Thomas, N.; Lichtenberg, G.: The latitudinal dependence of ion temperature in the Io plasma torus. Geophysical Research Letters 24, pp. 1175 - 1178 (1997)
Wuttke, M. W.; Keller, H. U.; Markiewicz, W. J.; Petrova, E.; Richter, K.; Thomas, N.: Properties of the Mars atmosphere: A revised analysis of Phobos/KRFM data. Planetary and Space Science 45, pp. 281 - 288 (1997)
Petrova, E.; Keller, H. U.; Markiewicz, W. J.; Thomas, N.; Wuttke, M. W.: Ice, hazes, and clouds in the Martian atmosphere as derived from the PHOBOS/KRFM data. Planetary and Space Science 44, pp. 1163 - 1176 (1996)
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior.
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).