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So I’ve been doing some more thinking about the time frames of the Nostromo’s travels. Figuring this stuff out is almost as hairy as plotting a time-travel story, which I suppose it is, in a way.
Here is what I have so far, with special thanks to the well-researched The Alien Universe Timeline. Any miscalculations are mine:
Sunday, January 7, 2120: Nostromo departs Earth for Thedus. Estimated minimal 32-month return date is Monday, August 24, 2122. (This does not include down-time on Thedus, as you will see later.)
Tuesday, April 1, 2121: Nostromo arrives at Thedus.
Thursday, June 12, 2121: Nostromo departs Thedus for Earth after 2 months, 11 days of cargo transfer and re-provisioning. Earth E.T.A. is Monday, October 5, 2122. (Incidentally, over three months late for Amanda’s 11th birthday. Sorry, Ripley!)
Wednesday, June 3, 2122: Nostromo exits hyperspace just short of Zeta 2 Reticuli.
Later, Lambert has re-calculated their trip home and announces it will take another 10 months to get home from the planetoid.
I realize they’ll be late, but I wanted to see exactly “how late.” So, I did some digging…and my calculations, based on time spent getting to and from the planet… (Sorry! One can’t help but channel Lambert after some time with this stuff…)
If my math is right, the diversion means they won’t get home until Tuesday, March 30, 2123, almost 6 months later than Lambert’s estimate before they left Thedus. (It’s 5 months, 29 days from October 5, 2122 to March 30, 2123).
Of course, they’ll sleep that away in the freezers, but meanwhile, more precious time is ticking away in the actual universe…
[Disclaimer: Realize that the basis of this “discovery” is the result of mixing on-screen dialogue with extrapolations based on the best available evidence.]
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