Exactly one month until landing. Slept poorly, waking every 2 hours, and so on until morning. Got up at 8, and the work carousel began. I noticed I’ve gotten considerably grayer. My heart aches, inner state is wound up. Spent much of today on geology, especially over Ukraine; I think I’ve figured out what’s where.

Working on the Far East is still hard. The terrain is monotonous, just hills, but I’m trying to make better sense of it. Now we’ve started up Korund. Entered the program; so far it seems to be running normally. Floating through the station, a thought struck me — what if right now there were a depressurization or a fire? How would we ensure safety? Right now that would be extremely difficult — during the flight, additional experiments have appeared, and with them new equipment, cables for connecting it to the onboard systems, none of which was accounted for when the station was built. Incidentally, this is one of the serious problems in creating long-duration orbital complexes: you need to anticipate, in the station’s layout, the inclusion of new experiments during the course of the flight.