Markiewicz, W. J.; Skorov, Y.; Keller, H. U.: The shape of a sublimating ice surface at the bottom of a non-volatie cylinder: Monte Carlo simulations and 2-D analysis. Advances in Space Research 21, pp. 1599 - 1602 (1998)
Markiewicz, W. J.; Skorov, Y. V.; Keller, H. U.; Kömle, N. I.: Evolution of ice surfaces within porous near-surface layers on cometary nuclei. Planetary and Space Science 46, pp. 357 - 366 (1998)
Crovisier, J.; Leech, K.; Bockelée-Morvan, D.; Brooke, T. Y.; Hanner, M. S.; Altieri, B.; Keller, H. U.; Lellouch, E.: The spectrum of Comet Hale-Bopp (C/1995 O1) observed with the Infrared Space Observatory at 2.9 Astronomical Units from the Sun. Science 275, pp. 1904 - 1909 (1997)
Eggers, S.; Keller, H. U.; Kroupa, P.; Markiewicz, W. J.: Origin and dynamics of comets and star formation. Planetary and Space Science 45, pp. 1099 - 1104 (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)
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)
Crovisier, J.; Brooke, T. Y.; Hanner, M. S.; Keller, H. U.; Lamy, P. L.; Altieri, B.; Bockelée-Morvan, D.; Jorda, L.; Leech, K.; Lellouch, E.: The infrared spectrum of comet C/1995 O1 (Hale-Bopp) at 4.6 AU from the Sun. Astronomy and Astrophysics 315, pp. L385 - L388 (1996)
Knollenberg, J.; Kührt, E.; Keller, H. U.: Interpretation of HMC images by a combined thermal and gasdynamic model. Earth, Moon and Planets 72, pp. 103 - 112 (1996)
Lamy, P. L.; Toth, I.; Grün, E.; Keller, H. U.; Sekanina, Z.; West, R. M.: Observations of comet P/Faye 1991 XXI with the Planetary Camera of the Hubble Space Telescope. Icarus 119, pp. 370 - 384 (1996)
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)
Kührt, E.; Keller, H. U.; Lorenz, E.: Interpretation of surface temperatures and activity of KOSI samples. Planetary and Space Science 43, pp. 333 - 340 (1995)
Dr. Theodosios Chatzistergos receives award by the European Space Weather and Space Climate Association for his research findings on the historical activity of the Sun.
The Zdenĕk Švetska Senior Prize of the Solar Physics Division of the European Physical Society (EPS) recognizes Solanki’s pioneering contributions to solar research.
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).