Changes

In 1994, scientists were able to witness fragments of the comet Shoemaker-Levy 9 collide with Jupiter. These collisions laster for 6 days, starting on July 16th of that year, and was the first cosmic collision to be observed. During the impacts, at least 21 separate fragments with a size of up to 2 kilometers hit Jupiter, leaving scars in its atmosphere larger than several Earths.

In 1994, scientists were able to witness fragments of the comet Shoemaker-Levy 9 collide with Jupiter. These collisions laster for 6 days, starting on July 16th of that year, and was the first cosmic collision to be observed. During the impacts, at least 21 separate fragments with a size of up to 2 kilometers hit Jupiter, leaving scars in its atmosphere larger than several Earths.

== Problems for unitarianism theories ==

== Problems for uniformitarian theories ==

Jupiter's sidereal day is less than ten Earth hours long. If Jupiter formed simply as an accretion aggregate of the [[nebula hypothesis|solar nebula]], then it should not have acquired such tremendous angular momentum. The problem involves not merely the short sidereal day but also Jupiter's tremendous mass.

Jupiter's sidereal day is less than ten Earth hours long. If Jupiter formed simply as an accretion aggregate of the [[nebula hypothesis|solar nebula]], then it should not have acquired such tremendous angular momentum. The problem involves not merely the short sidereal day but also Jupiter's tremendous mass.