Releasing the original blog version of The Martian by Andy Weir, as it happens.

February 28, 2037

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LOG ENTRY: SOL 468 (Feb. 28 2037)

I managed to thread the needle between Rutherford and Trouvelot nicely. Admittedly, the needle was a 100km wide, but hey.

I’m now enjoying my fourth Air Day of the trip. I’ve been on the road for 20 sols. So far, I’m right on schedule. According to my maps, I’ve traveled 1,440km. Not quite halfway there, but almost.

I’ve been gathering soil and rock samples from each place I camp. I did the same thing on my way to Pathfinder. But this time, I know NASA’s watching me. So I’m labeling each sample by the current sol. They’ll know my location a hell of a lot more accurately than I do. They can correlate the samples with their locations later.

It might be a wasted effort. The MAV isn’t going to have much weight allowance when I launch. To intercept Hermes, it’ll have to reach escape velocity, but it was only designed to get to orbit. The only way to get it going fast enough is to lose a lot of weight.

At least that jury-rigging will be NASA’s job to work out, not mine. Once I get to the MAV, I’ll be back in contact with them and they can tell me what modifications to make.

They’ll probably say “Thanks for gathering samples. But leave them behind. And one of your arms, too. Whichever one you like least.” But on the off-chance I can bring them, I’m gathering them.

The next few days travel should be easy. The next major obstacle is Marth Crater. It’s right in my straight-line path toward Schiaparelli. It’ll cost me a hundred kilometers or so to go around, but it can’t be helped. I’ll try to aim for the southern edge. The closer I get to the rim the less time I waste going around it.

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