Ah! And in that same article, there's an example of the correct use of the phrase "falling out of orbit":

Nah, the Humane Society inspectors would be hounded away by all the desperate Scottish Junkies. ;)

Oh yes you were!
https://www.youtube.com/wat…

Those orbits aren't totally stable, due to the gravitational influences changing over time. The Wikipedia article covers the concepts well, although the maths is way over my head, unfortunately:
https://en.wikipedia.org/wi…

LOL. And yet you were just complaining about people arguing.

"It's going to hit us!" would be fine. The error comes of trying to make it sound super-sciencey, & getting it wrong.
ETA: It's not a grammar rant, it's a science rant.

Now every nerd in the known universe knows how orbital mechanics work.

That was my take on it too, given that Mars & the OPs are already fighting over water. So any kind of succulent would be a luxury.

I love it when they use the turreted rail-guns. So fucking cool!

Not even close. According to Wikipedia*, Ganymede has a surface area 0.171 that of Earth. But more to the point, it has no atmosphere, so everything has to be grown under domes, which is hardly going to make for a lot of farming 'land'.
[Edit] I'm betting that most people on Mars & further out mostly eat SF genre-style…

It may well have been, but gravity wasn't what got it there, & it wasn't "falling out of orbit". Go read any of Heinlein's juvenile novels where he explains, in very simple language, how all this stuff actually works, & why it's not possible to "fall out of orbit". In particular, I recommend his novel The Rolling…

AKA the Rule of Cool:
http://tvtropes.org/pmwiki/…

But Ganymede is a tiny outpost growing crops under domes, & Mars is an entire planet. Their output would be small enough that it'd be very much luxury food that ordinary grunts would probably never get a chance to eat.

You're welcome!

No kidding. Damn, bras were ugly in those days.

Was anyone else surprised that that comment wasn't followed up with jokes about lesbians?

Better yet, a mashup with Trainspotting.
Picture this: A Scottish theme park with heroin-dinosaurs.

He seems to have Cheryl for that, right now.

It wasn't a spacecraft, & it wasn't orbiting; it was a piece of shrapnel flying away from the exploded Martian ship. It wasn't being pulled towards the station by gravity, which is what 'falling' means.

"reference to William Randolph Heart"
* Hearst.