White glowing sphere appeared in the sky and moved horizontally leaving a white glowing tail behind it .Many UFO sightings happened at different times and sites, Sinai, Cairo and many other places here in Egypt,as for me I was one from those who had these sightings at 4.30 am (6/23/2010), while i was studying i saw a glowing whit ball(very small ball indeed), I thought it was a star at the beginning since it was standing still in-spite of it's larger size and suddenly it moved horizontally leaving a glowing white tail behind it and then it disappeared. All this happened in 6 or 7 seven seconds, it wasn't a meteor nor an aircraft it was something else for sure, a UFO or maybe a highly advanced secret weapon, satellite i dunno the only thing i know is that I'm sure of what i had seen already.Next morning i was surfing the web and opened an Arabic news site called masrawy (www.masrawy.com) and i found a title that said: unidentified objects appeared in the skies of north Sinai causing terror among people and i was shocked , here is the link (www.masrawy.com/New! s/Egypt/Politics/2010/june/23/areesh.aspx) it's in Arabic unfortunately.finally I'm just asking for a reasonable (or unreasonable) explanation for these sightings that happened to me and to many others all over the country.thanks for your patience. Oh by the way there is video included in the page i sent containing what i saw thanks.