Featured in connection with the mass observed in the so-called Soviet Union.Petrozavodsk phenomenon (Petrozavodsk miracle) 1977 official organizations was initially explained as an anomaly of nature unexplored, and later – activities of military and special top-secret at the time the Plesetsk cosmodrome, however, binding to this phenomenon is called the start of the launch vehicle has a number of inconsistencies.
The mass appearance of UFOs over Washington in 1978, became the catalyst for a sharp rise in public interest in such phenomena, up to a debate with President Carter and the question to the UN, but in relation to this occurrence expected to make any formal or academic positions, except for detection of atmospheric effect unclarified , was not expressed.
Shortly after the inauguration of the 44th U.S. President Barack Obama in the sky over Washington was seen UFOs. His camera recorded the American TV channel. According to the comments of the witnesses, the object did not look like a bird, as it was visually flat and without wings. However, perhaps it was an ordinary helicopter [25].
According to researchers, [citation needed 1015 days] people who claim to have seen UFOs, can take a flying saucer sprite system. ”Spark” in the sprites (visible vertical columns of light) can reach a height of 20 km, and a beam of “candle” may have a diameter of up to 70 km.