Modern UFO era 

 The post World War II UFO phase in the United States with a repotted sighting by America businessman Kenneth on June 24, 1947 while flying his private plane.

 Near Mount Rainer, Washington. He reported seeing nine brilliantly  bright  object flying across the face of Rainier towards near by Mount Adams at “an incredible speed”, which he calculate at least 1200 miles per hour by timing their travels between rainier and Adams. His sighting subsequently received significant media and public attention. Arnold would later say they “flew like a saucer would if you skipped it across the water” and Also said they were “flat like a pie pan”, “shaped like saucers,” and “half-moon shaped, o oval in font and convex in the rear…. They looked like a big flat disk.” Arnold’s report descriptions caught the media‘s and public’s fancy and gave rise to the terms flying saucer and flying disk.

 Arnold’s was followed in the next few weeks by several thousand other reported sighting, mostly in the U.S, but other countries as well. Perhaps the most significant of these was a United Airlines crew sighting of nine more disc-like objects over Idaho on the evening of JULY4. This sighting was even more widely reported than Arnold’s and lent considerable credence of Arnold’s report. Fro the next few days most American  newspaper were filled front page stories of the new “flying saucers” or “flying discs.” Starting with official debunkery that began the night of JULY 8 with Roswell UFO incident, reports rapidly tapered off, ending the first big U.S UFO wave.

 Photograph of an unidentified high altitude bright source. Picture taken by Royal Canadian Air Forces pilot R. Childerhose on august27, 1956 from an altitude of J 36,000ft. Then object was higher than app.4km and was observed for more than 45sec from the pilot’s letter to DR.James McDonald, June 12, 1968: “I don’t know whether I mentioned this to you but the photo of the bright object doesn’t represent quit what appeared to the naked eye. When I first saw the object it appeared as a very bright, clearly defined discoid, like a silver dollar lying on its side. The photo makes it look like a blob of light, the result of light intensity. It appeared much brighter than of the sun which of course, was setting behind the clouds up ahead. What appears in the Kodachrome side is a disappointment, really.”