This is not the first time people have heard strange sounds in the sky, somewhat similar to the sound from a jet plane, but in all cases there were no planes.
The latest incident took place in central Austria in the Alps at about 1200 meters above sea level, when Richard and his wife heard an incredible roar coming from the sky.
They heard strange noises that were 100 times louder than normal aircraft noise twice in about 6-8 minutes, with a 5-minute break in between. At first they thought that a huge plane was circling above the clouds, but they did not see a single aircraft.
Even more interesting is the fact that Richards saw clouds descending, indicating that something was pressing down on these cloud formations, dropping them towards Earth, as if there was a huge disguised spacecraft entering our atmosphere.
Whatever it is, it must be at least 1 kilometer in size in order to move our atmosphere the way it was done and produce sound that circles around us, Richard said.