The secret to interstellar travel is known to very few. It must be possible, however, since the UFOs do it all the time. Star-planet-moon combinations harboring intelligent humanoids are very rare, maybe a hundred light years apart. I can guarantee that star travel does not violate the laws of physics. (1) There is no connection between gravity and electro-magnetism. So electro-gravitics is bunk. (2) Wormholes can only be held open with negative mass, but that has paradoxical properties. The less you push on it, the more it accelerates away from you. (3) Any technological approach runs into a law of vanishing returns at 0.1 C. Even if you could somehow approach C, that is still far too slow. See above. 
Visiting humanoids will not tell us how to go to the stars. That would violate the Prime Directive (absolutely the only thing that Star Trek got right). Indeed, count on them for misdirection and disinformation. This is for our own good. We are far too brutal and violent a species to be turned loose on the universe. Nonetheless, the behavior of UFOs provides most of the clues we need. For instance, UFOs jump hundreds of lightyears in an instant. How do we know that? Because they started showing up in sizable numbers only a year and a half after Hiroshima. The foo-fighters must have gone home, and spread the word up and down the star-traveling community that Earth had gotten interesting. We had gone nuclear, but had no global civilization to keep it under control. (And we still don't). For expeditions to be planned, for several different species to begin arriving in 1947, the actual mode of transportation must be instantaneous jumping across hundreds of lightyears. 
What if you don't believe in the reality of UFOs as the star-craft of star traveling humanoids? Then I suggest you do some research. Read the book edited by Charles Bowen called The Humanoids . Until you do that, I refuse to talk to you. Scientific evidence is the only thing that counts.
UFO believers nearly always think they must just have more sophisticated technology than we do. However, just as physics cannot violate the laws of logic, so technology cannot violate the laws of physics. UFOs do not, and cannot travel by technology. The laws of physics do not allow star travel. But the UFOs are here. What does that mean? It means they do not travel by technology.
Levitation and teleportation constitute the means of travel of UFOs, whether going silently low and slow, or dashing back out to space or getting home before tea time. Levitation and teleportation are powers of the mind, not powers of physical matter. What if you believe that the mind is the brain? Then you had better do some research. Psychical research. You could start with the discovery of reincarnation by Prof. Ian Stevenson. Look him up on the web. Obviously, the mind or spirit cannot be anything physical, since the physical body rots and dissolves eventually into its component atoms. The mind or spirit cannot be made of atoms. In fact, it must be dark matter. Dark matter was first discovered by astronomers to account for the non-Keplerian rotation curves of spiral galaxies. It is dark because it has no interaction with the Electro-Magnetic (EM) force. Thus, it is invisible and intangible, yet it has mass.
There was a physician who weighed the spirit, by detecting the change in mass at the instant of death. It is 21 grams. You can look that up on the web too. Since dark matter is quite different from ordinary matter, it can have different properties, so far unknown to physicists. Psychical researchers know something about the dark matter that makes up the mind. Levitation and teleportations are properties of the mind, and the secret to star travel. It is as simple as that. Levitation and teleportation are part of human experience, and powers born to a few. They are the only phenomena that resembles UFO phenomena. What is not so simple is how mankind develops to a stage where we too can teleport hundreds of light years.
See the URL below for more on these topics.
Here's an example of teleportation, from the Chinese studies. 4 young girls were able to apport flower buds into cups covered with saucers, in bright light, without touching them, under the eyes of a group of scientists. The flower buds did not travel through the intervening space-time. They took a shortcut through one of the extra dimensions required for String Theory.
Have a nice day! 
In a Batcheldor group, they work in complete darkness and complete silence, although other secondary groups have deviated from those rules. Whatever works. Since PK is a power of the mind, it only makes sense that the psychological atmosphere is important. Batcheldor groups usually begin at midnight and go until dawn, night after night, whether they get any results or not. Secondary groups deviate from that rule too.
will poison the atmosphere. So if they are not willing to believe the photos and videos, I guess they will just have to live and die a skeptic.
I kowtow before your all seing Eye.