In July 1994 dramatic cosmic event will take place: comet Shoemaker-Le
vi 9 will collide with Jupiter. The entry of the comet into the atmosp
here of Jupiter will be accompanied by a fast energy release and an ex
plosion will take place, The energy released during the explosion, of
the order of 10(7) Mt, will exceed by some thousands Told the total nu
clear potential accumulated by mankind. Some characteristics of intera
ction of the comet with Jupiter are discussed and possible consequence
s of the collision are outlined.