Sadaputa prabhu from ISKCON, otherwise known as Dr Richard Thompson PhD , offers the Vedic explanations to the UFO phenomena.
In a multidimensional universe , the Vedas explains , with lower middle and upper  planetary systems , the lower , the Vedas says , is equipped with high levels of advanced knowledge of sciences beyond our current understanding . It’s hardly surprising that occasionally, the entrances to the different dimensions may be breached for a number of reasons . Although generally, the dimensions don’t interact by universal laws . Sadaputa prabhu explains all on YouTube , along with many Vedic explanations to scientific matters .
This post is relevant as the USA government is releasing many many files to the public , online about UFO official sightings recorded by USA government…Take a look and also hear from Sadaputa prabhu , the author of a Vedic cosmology book , and mechanistic and non mechanistic sciences , as well as others books on scientific matters . We can not presume everyone sees in the same way , for instance, what is an ant seeing and experiencing when it casts its eyes upwards a looks at us , each species has a particular set of senses that operate in particular ways . Throughout the universes living beings live within different combinations of the material and ethereal, and subtle energies thus the multidimensional planes have no limits practically,  but are deliberately seperated from each other , as the different species in this world are , each  living in their own worlds with no communications between them in real terms.  The Harvard Prof Lisa Randall from Harvard has written on membranes of the universe,  the dimensions where one each one is isolated from another .

It appears that for various reasons, intrusions may occur deliberately or by accident and some hints of other existences are hinted at or even seen .Telepathy and ghostly matters are also only hinted at and never experienced by 99.9 of the population.  Thus, Divinity and His agents keep everyone and their experiences very much seperated,  free will requires a certain degree of conditioning,  if you could see God , your free will is effected .
http://www.thevedicspectator.com