It gets better? Hey, I think it's pretty good now!
Unmodified scuba gear won't work in space. The regulator works with the surrounding water pressure to control the flow of air from the tank to the diver.
Here\'s a page which explains how a regulator works far better than I could.
Luthor took an awful risk here. If the timing was off on the gas release - and apparently it was - then it's likely that the ship won't hit Nightfall exactly at the desired impact point. That means that there's still a chance for a large fragment to be aimed at Metropolis or Gotham City or Central City or Chicago or East Peoria. At any rate, his own empire is at risk, and maybe his life, even if he's got that underground Ark ready. And if Superman survives - which, of course, he will - then Luthor has made an overt attempt on his life, and
that is legally actionable. Lex is going to go
both personally and professionally!
Will he make it back to crash in Suicide Slum? What will Lois do? How will she help him? And how far will she go to help?
I never liked the original "smack the asteroid at top speed" plan either. It was some lazy writer's way of generating dramatic tension. And when Superman pushed the fragment away from the Earth, it made me wonder why he didn't just push Nightfall around the planet. Surely he could have altered its course to drop it into the Sun? That wouldn't have made any impact on old Sol, either.
Looking for the next chapter!