From the X Files: The Search for ET Artifacts in the Solar
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Space Mission --Acquires Australia Tracking Station »  November
08, 2011    Trying to replicate the discovery of the a;lien
Monolith on Moon in Space Odyssey:2001, two researchers at Penn
State, are asking "why have we never found evidence of other
civilizations in Solar System?" The team is approached the
problem mathematically, which shows that we have not looked in
enough places to ensure that no extraterrestrial artifacts exist
in our solar system.  "The vastness of space, combined with our
limited searches to date, implies that any remote unpiloted
exploratory probes of extraterrestrial origin would likely
remain unnoticed," report Jacob Haqq-Misra, Rock Ethics
Institute, and Ravi Kumar Kopparapu, Earth and Environmental
Systems Institute.  Even without actual contact, like us, other
civilizations could be sending unpilote