On friday Huygens probe entered Titan atmosphere.
Very cool!!
A Blog with detailed information about the last days including the latest pictures: http://planetary.org/news/2005/huygens_blog.html
Titan sound downloads: http://planetary.org/sounds/huygens_sounds.html
German article about the mission that nearly failed because of not considering the "Doppler Effect": http://www.heise.de/ct/05/02/043/
fn = f0 · (1±v/c) für v<<c
Not considering it means that the frequency between sender and receiver will be different about 1/50000 and that is enough that communication would only work at 10%. But the issue has been solved in the end. ;-)
Live Announcement MP3 of the success: http://www.esa.int/SPECIALS/Cassini-Huygens/SEMIEPQ3K3E_0.html
Really a great thing for the people who have been working for ages on the project - in the upper left are the 2 downloads.