В сборнике отражено мировоззрение К.Э. Циолковского, оригинального мыслителя, ученого-самоучки, основоположника я горячего энтузиаста космической навигации. Он стремился обосновать в своих работах мысль о том, что человек, будучи всем своим существом связан с родной планетой, все же безмерно выиграет, если постепенно завоюет космическое пространство.
N.B. I am using this as a placeholder for "On The Moon" and including about half the content; will also claim "Outside The Earth" separately, to also include the other half, and with all reviews gathered here.
ON THE MOON; 42 pages; written in 1887, published in 1892/3 Tsiolkovsky imagines he wakes up on the moon, and speculates about gravity, locomotion, day/night, heat/cold, looking back at earth, eclipses - all interesting (if rather dry) stuff.
DREAMS OF EARTH AND SKY; 103 pages; 1895 amazing series (45 sections!) of facts/speculations on all things cosmological, a lot concentrating on various aspects of gravity and also (for some reason) great interest in asteroids and the possibility of organised life there.
ON VESTA; 6 pages ("written before 1919") amazing detailed imagining of both alien life and human colonisation of the largest asteroid.
OUTSIDE THE EARTH; 171 pages; started in 1896, finished in 1918, finally published in 1920!; Amazing, detailed description of a group of scientists who crack spaceflight almost as a hobby - launch into space, go into orbit, visit the moon, explore an asteroid-infested zone out as far as Mars, pioneer self-sufficient greenhouse-based colonisation of space (which catches on back on earth and thousands of people start launching into space likewise). Some of the details are wrong (like suspending in water nullifying acceleration) but most are not that far out. Just mad that this was written prior to 1918.
THE AIMS OF ASTRONAUTICS; 41 pages (1929) Tsiolkovsky's pet subject here, as he ponders the reasons we will need to leave earth, how we might do it, and various details such as harnessing the sun's energy with immense mirrors, how factories might operate in weightless conditions, creating artificial gravity by imparting rotation...
CHANGES IN RELATIVE WEIGHT; 27 pages; 1894 imagined visits to Mercury, Venus, Mars and (another of his pet subjects here) the larger asteroids Vesta and Pallas which he is determined are likely to have large intelligently inhabited "rings".
LIVING BEINGS IN THE COSMOS; 20 pages (1895) wide-ranging speculation on the various forms non-terrestrial life could take: different brains, organs, elemental composition, temperature gravity, gaseous atmosphere, social organisation(!) nature of matter itself(!!)
BIOLOGY OF DWARFS AND GIANTS; 8 pages (started in 1882, finally published in 1921/2?) Very strange guesswork about what life might be like for "humans" if they were a lot bigger or smaller in size - no idea why he bothered with this.
ISLAND OF ETHER; 13 pages
BEYOND THE EARTH’S ATMOSPHERE; 10 pages (post-1929)