1.   Pressures and temperatures in the Jovian atmosphere have largely been determined by spacecraft, using a variety of techniques.

2.   Several different atmospheric constituents can form clouds in the Jovian atmosphere.

3.   Did the fragments take unexpectedly long to penetrate the Jovian atmosphere, as indicated by preliminary data from the Galileo space probe?

4.   Galileo made it to Jupiter last December, swinging into an orbit of the planet and sending in an instrumented probe of the dense Jovian atmosphere.

5.   It was not immediately known how deep into the Jovian atmosphere the probe was able to operate and send scientific data.

6.   It will also send a probe into the Jovian atmosphere.

7.   Planetary astronomers are hoping for more information next year, when the Galileo spacecraft reaches Jupiter and releases a probe that will descend into the Jovian atmosphere.

8.   The biggest single loss will be in studies of the dynamics of the Jovian atmosphere.

9.   The disruption of the Jovian atmosphere and other effects of all three were seen by many observatories.

10.   There were no cameras aboard, so scientists could not say exactly what a plunge into the Jovian atmosphere looks like.