10. THE PLANET VENUS
9. METEORS, COMETS AND FIREBALLS
8. LENTICULAR CLOUDS
7. BALL LIGHTNING
6. WEATHER BALLOONS
5. SATELLITES
4. FLARES
3. BIRDS, LENS FLARES, REFLECTIONS AND OTHER ABNORMALITIES
2. AIRCRAFT
1. EXPERIMENTAL MILITARY AIRCRAFT
Full article: http://sify.com/news/Top-10-most-common-explanations-for-UFOs-imagegallery-Features-kfgqF4iajig.html
FIRST CROP CIRCLE OF 2010 APPEARS AT THE HISTORIC IRON AGE HILL FORT OF OLD SARUM, NEAR SALISBURY, ENGLAND.
Full article: http://www.dailymail.co.uk/news/article-1274365/First-crop-circle-2010-spotted-Wiltshire.html
RESEARCH JOURNALIST AND AUTHOR PAOLA LEOPIZZI-HARRIS REVEALS THAT AS A CLOSE CONFIDANT OF EX-PROJECT BLUEBOOK UFOLOGIST DR. J. ALLEN HYNEK, THAT CARL SAGAN ADMITTED HIS BELIEF IN ALIENS BACKSTAGE AT ONE OF HIS MANY APPEARANCES ON THE TONIGHT SHOW WITH JOHNNY CARSON.
Full article: http://www.prweb.com/releases/2010/05/prweb3966374.htm
