His observations led not only to a few asteroid discoveries or codiscoveries, or to better determination of orbit for hundreds of objects, but contributed also to finding out some of their physical properties, such as rotation period, size, shape, pole position, binarity, mass, bulk density, surface composition, spinning up or even splitting. His research has been supported not only by Comenius University, but since 2004 significantly also by Academy of Sciences of the Czech Republic.

In general, he considers asteroids as friends, though part of them are dangerous for life. For example, one of his discoveries belongs to a group of threatening asteroids, though its size is only ~ 25 - 30 m. Just imagine! If that body passing by within 1 035 000 km (2.7 times lunar distances) was on a collision course with Earth, it would release energy ~ 30 - 40 times larger than a bomb that was dropped on Hiroshima in 1945. Encounter velocity was ~ 12 km/s, but the estimate of energy is crude due to assumed asteroid size and unknown composition (bulk density). In addition to that, just several hours since discovery would be at disposal to compute the impact site (which would probably be crude estimate at most) and, in case it is a populated area, inform people there in time to evacuate if needed. And now imagine that larger bodies and objects with large density are also out there, while even larger encounter velocity is possible...