Undated artist rendering provided by EADS Astrium shows the scientific satellite Rosat. The German Aerospace Center said the retired satellite is hurtling toward the atmosphere and pieces could crash into the earth. Spokesman Andreas Schuetz told The Associated Press on Wednesday, Oct. 19, 2011 that most of the satellite named ROSAT, which is about the size of a minivan, will burn up during re-entry. (AP Photo/EADS Astrium)
October 22, 2011 9:07:25 AM PDT
BERLIN - October 22, 2011 --
German scientists still don't know exactly when or where pieces of a defunct satellite hurtling toward the atmosphere will hit the Earth this weekend.