And 60+ years later their guess is semi-confirmed by this study; if humans want to be in space for a long time they'll need artificial gravity to avoid most of the harms mentioned in the article. Amazing that 90% of his genes returned to normal expression. I wonder how long humans can withstand microgravity before that number drops severely, or if it's a gradual decline...

I have a Soviet illustrated pop-up book about space travel, with the same title, but a different author and I think published about 1980.

It appears to be "Into Space" by V. Sevastyanov, however I could only find pictures of the cover by searching for "В космос" В. Севастьянова.

Front: https://images.app.goo.gl/M51TCVL35gabKREH7

Back: https://images.app.goo.gl/bdLAZTJ9iVbm1q596

I've been wondering for years if it was a valuable collector's item, but now due to the magic of Google Lens, I guess it's not.

An old professor of mine was part of the medical research in these initial studies. I remember some of the big unanswered question about 0G were the digestive system and the vestibular system. Digestive because we had no idea if a stomach and the rest could deal with 0g and not just cause vomiting and whatnot. The vestibular (sense of balance) because the tiny crystals in your inner ear may detach in prolonged 0g away from the hair-like cells that transmit motion to your brain, causing permanent vertigo. Not a good thing for a pilot to have. There were many other effects that were unknown too, hence the space monkeys. Since they came back alright, it was seen as safe enough to send highly trained and very expensive test pilots up there too. Man, the Cold War, what a trip.

Which one? Is it online anywhere?

>Is it online anywhere?

http://www.flibustahezeous3.onion/b/167460

Not sure. I got mine off eBay as memento, having read it back in school days many years ago. Very much identical to this lot:

https://www.ebay.com/itm/1955-Traveling-in-Space-M-Vasilev-R...

There's also an expanded post-Sputnik edition of it I think.