Some Morfing UFO's Can Perhaps Be Explained...

Hi all,

I came across this video while surfing youtube for new ufo footage... I'd seen this one before but had never made the connection that I did today.



I'm pretty sure whats going on in this footage is somthing similar to a street artists work. Joshua Allen Harris. This artist uses plastic bags and air to make his art come alive.



Could many seemingly morphing UFO's be explained by things such as the artist Harris work or solar balloons like this...