Who said Nero's ship was slow? It's faster than the damaged Enterprise. Not MUCH faster, but fast enough that they can't easily catch up to it without repairing their engines first. And this at a time when Nero isn't actually in a hurry to get anywhere.Still a victim of its own inconsistencies and stupidity (i.e. the plot being stupid). If Nero's ship is so slow, how did he get 85LY to Vulcan so quickly?
Probably the same reason he lured Starfleet into an ambush instead of just warping into Earth orbit and curb-stomping them: Because Narada, for all its power, is far from invincible.If his ship is awesome enough to destroy 47 Klingon ships built for battle and then take on 7 Federation ship and any number of Vulcan ships, why would he need the defence codes?
Also, circumstantial evidence from TOS and STID would seem to suggest that our estimate of Klingon military prowess in the 23rd century is greatly exaggerated. They were a major military power in the 22nd century, true, but it seems the D7 class starship -- the workhorse of their fleet -- is at least a century old in the TOS era; that, plus the ascension of a new "warrior class" into positions of political power probably means the Klingons are experiencing a period of profound stagnation.
Nero was able to crush a fleet of powerful 23rd century starfleet ships. I'm guessing that a larger fleet of 22nd century ships wouldn't have been that much of a challenge either.
V'ger dragged the codes out of the Enterprise computer just before it assimilated Ilia. Even assuming Narada used the same trick V'ger did to disable the defense grid (it might have, who knows?) Nero knows enough about Starfleet defenses from A HUNDRED YEARS AGO to take a guess at how to go about it.Plus, if his ship has been upgraded by V'Ger, doesn't V'Ger already know how to disable Earth's defences (although I haven't read the comic so I have no idea how this went down)?
No, but they can do the math, and they know that Nero would have to completely drop out of warp in order for them to overtake him before he gets to Earth.More importantly, Kirk and Spock don't know that he is going to travel slow to get the defence codes, or how long that will take (he could speed up as soon as he has them, which could be 5 minutes into his trip).
Not to be a jerk, but when you start with the assumption that "they should have outer defenses!" and then arrive at "the good guys never use them and the bad guys act like they're not there," your starting assumption is obviously flawed.It's a good job the universe was onside for the heroes because both the heroes and villains were pretty clueless.
If Sol has any defenses at all, they're arranged specifically to prevent bad guys from entering Earth orbit. If the are other defenses in the Sol system, they're defending the other major planets of the system that are home to things the Federation cares about. There are probably ways of beefing up that defense with mobile weapons platforms, drones, satellites, etc. But this is peacetime; in the TOS era they'd still be nine years away from war with the Klingons and then only a border war fought exclusively on their respective frontiers.
Assuming you know where the bridge of Nero's ship is. Also, assuming you can send a bomb big enough to disable the Narada without killing Captain Pike. Also, assuming that detonating Nero's ship won't also detonate the red matter and lead to the Earth being sucked sideways down a massive black hole.Back to weaponising transporters: would it have been safer to beam an explosive onto the bridge of Nero's ship, and/or the area of the ship that deploys the mining platform rather than send two men into the bowels?
Also, Narada's shields are down at the time they beam aboard; if Enterprise had enough firepower to disable the Narada conventionally, they might as well just open fire.