During a night-time battle, the aliens and the humans exchange pot shots (in a manner similar to the actual game Battleship, using the buoy system to locate areas to fire upon), with the John Paul Jones sinking two alien ships but unable to lock onto the third. Meanwhile, Samantha and Mick manage to disrupt alien signal transmission by crashing their car through the wires connecting the alien's signal transmitter to the NASA array, with the Army veteran recovering his fighting spirit along the way and eventually to the point of standing up to an incoming alien soldier and fighting it hand-to-hand
You are entering the debate about whether what the historically named The Black Death is indeed the Bubonic Plague, the former being transmitted through the fleas of rats. From the historical record, the Black Death spread much faster than any sort of rat/flea disease, such as in island nations like Iceland. If you, or anyone else, claims to know the true nature of the Black Death, then you are indeed, a truly smart person.
Yes it does, but:
speed of light applies even for gravity, any gravitational tug is restricted to that speed
due to the inverse square law, it very quickly drops to "insignificant"
due to the homogeneous nature of the mass in the universe, any electron would be getting equal influence from all directions, the sum being no effect
Would allergies make exploring alien planets impossible without a biohazard suit? Would absolutely everything cause an allergic reaction since every microbe, benign or not, is alien to our immune system?