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)
Solar Orbiter is the first space probe to look at the Sun's poles – and finds the magnetic field there in a state of turmoil. The Sun's magnetic field is currently undergoing a flip.
First Light! The spectro-polarimeter of the world's largest solar telescope in Hawaii looks at the Sun for the first time. The instrument was developed in Germany.
Analyzing the high spatial resolution solar Ca II H and K emission data obtained by the SUNRISE mission and building a model of other stars more active than the Sun
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.