Ip, W.-H.; Williams, D. J.; McEntire, R. W.; Mauk, B. H.: Ion sputtering and surface erosion at Europa. Geophysical Research Letters 25, pp. 829 - 832 (1998)
Ip, W.-H.; Fernández, J. A.: On dynamical scattering of Kuiper belt objects in 2:3 resonance with Neptune into short-period comets. Astronomy and Astrophysics 324, pp. 778 - 784 (1997)
Ip, W.-H.; Williams, D. J.; McEntire, R. W.; Mauk, B.: Energetic ion sputtering effects at Ganymede. Geophysical Research Letters 24, pp. 2631 - 2634 (1997)
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)
Russell, C. T.; Bagenal, F.; Cheng, A. F.; Ip, W.-H.; Roux, A.; Smyth, W. H.; Bolton, J. S.; Polansky, C. A.: Io's interaction with the Jovian magnetosphere. EOS, Trans. AGU. 78, pp. 93 - 100 (1997)
Belton, M. J. S.; Head III, J. W.; Ingersoll, A. P.; Greeley, R.; McEwen, A. S.; Klaasen, K. P.; Senske, D.; Pappalardo, R.; Collins, G.; Vasavada, A. R.et al.; Sullivan, R.; Simonelli, D.; Geissler, P.; Carr, M. H.; Davies, M. E.; Veverka, J.; Gierasch, P. J.; Neukum, G.; Pilcher, C. B.; Beebe, R. F.; Burns, J. A.; Fanale, F.; Ip, W.-H.; Johnson, T. V.; Morrison, D.; Moore, J.; Orton, G. S.; Thomas, P.; West, R. A.: Galileo's First Images of Jupiter and the Galilean Satellites. Science 274, pp. 377 - 385 (1996)
Fernandez, J. A.; Ip, W.-H.: Orbital expansion and resonant trapping during the late accretion stages of the outer planets. Planetary and Space Science 44, pp. 431 - 439 (1996)
The European Space Agency (ESA) has given the green light to build the flight models of the spacecraft and science payload for the PLATO mission to search for extrasolar planets.
In the "Solar and Stellar Interiors" department, Laurent Gizon, Jesper Schou, Aaron Birch, Robert Cameron and others offer PhD projects in solar physics and astrophysics. Helioseismology and asteroseismology are used as important tools to study the oscillating Sun and stars.
The longest-serving solar observatory in space has turned 25 and is still making significant contributions to solar research. Its old age has become an important merit.