This is not a typical article for me as it does not involve an unknown object, but rather a sighting of an unknown, but known, craft. On June 25th, 2017 around 11:24 am in the city of Moorpark California, a witness reported an oddly shaped aircraft that appeared to be emanating electrical interference as well as attempting to cloak itself. The witness states that while sitting in a restaurant drive-thru lane they saw a craft that literally hurt their eyes to look at. They claim it was using some kind of neural confusion device and that it reminded them of trying to look at a needle coming at their eye.
In a document that was unveiled in a Freedom of Information Act request there are talks about the United States Air Force operating routine nuclear powered space flights into local space as well as to the moon. The document even speculates that the U.S.A.F. is operating a base on the moon in which we regularly travel to and from. The document suggests that the amount of nuclear fuel needed is no longer measured in pounds, but grams.
Magnetohydrodynamics (MHD) is quite the mouthful, but seems to be one of the latest forms of propulsion and may help explain a huge variety of UFO sightings. MHD relies on magnetic properties of electrically conducting fluids to provide lift and thrust. Some common fluids used are plasma, liquid metal, salt water, and electrolytes.