[My 8 potential ufo sightings / strange occurrences in the sky]

New here  nice to see forums still kicking in the era of facebook

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In USA, Delray Beach, FL:
https://www.youtube.com/watch?v=C3ccfkMACWU

In USA, Waltham, MA:
Shiny disk-like (?) object?

https://www.youtube.com/watch?v=hGO0DgygPIU

In USA, Chelmsford, MA:
Could very well be a reflection (and probably is), but still a weirdly looking piece.

https://www.youtube.com/watch?v=KVVbGPLcubc

In Lithuania, Siauliai:
The classic cigar shaped ufo photo?

https://www.youtube.com/watch?v=RU2JIpvgF8c

In USA, Waltham, MA:
Rotating unknown object?
 

https://www.youtube.com/watch?v=_sRKAGxCyuA

 

In USA, Waltham, MA:
Four UFOs or just balloons?
https://www.youtube.com/watch?v=CBp4Y20VNzo

 

In USA, Waltham, MA:
UFO or meteor?
https://www.youtube.com/watch?v=uwHnzGrFD7w

Over Atlantic Ocean
https://www.youtube.com/watch?v=h5t26fBq5ds