A UFO fleet appeared over Moscow on 10-10-10. Thanks to Welcome the Light.
https://www.welcomethelight.com/2010/10/ufo-fleet-seen-over-moscow-similar-formation-to-new-york/
And, apparently (not sure although the video shows one UFO) other UFOs are said to have been creating rings in the sky above Moscow, on Oct. 8, 2010.