our first ufo sighting. KEFALONIA GREECEdriving home at 07:25am with my wife we saw a flying object in the dawn of the sky about 150meters high that was very fast. it changed colors from neon blue to neon green leaving a trail of light beams & sparks,it also seemed invisible at some point when we first saw it up in the sky .it was obal or a sphere as my wife said she saw it.as soon as we saw it,it seemed to move faster & disappeared in 5 sec.its was amazing & we have never seen anything like it before in our lives. s.k. & a.f. argostoli,kefalonia,GREECE