In fact the whole alien interaction scenario and testing protocols applied could possibly be ascribed to gathering samples and test data in support of just that. We have had no other hint of any other direction so far and the level of sampling appears far too high for scientific work.
What become totally clear is that this is not random luck and occasional at best. It appears part of a huge program.
There were a number of other people who saw the UFO in the vicinity and one couple took three photos of it with a Nikon Camera.
The incident occurred on the night of April 13, 1979, in Jardim Alvorada, a suburb of the city of Maringa in the state of Parana in southern Brazil.* The principal witnesses are Jocelino de Mattos, then 21, an electrician or linesman, and his brother, Roberto Carlos, then 13.
The incident began about 11:30 PM and continued until about 1:30 AM. The brothers had gone to a sister's house to watch a religious program on TV (April 13 being a religious date in Brazil), but because the ceremony was not going to begin until about midnight, they decided to go home: