Original sentence: In 1971, the real Soyuz 11 mission ended in tragedy when all three cosmonauts perished during re-entry while returning from Salyut 1, the first ever manned space station.In the 1969 version, the names were changed to Jim Pruett and Ted Dougherty, with Clayton "Stoney" Stone and "Buzz" Lloyd added to make up the three-man Apollo crew.Library of Congress # 74-80703), the character Steve Austin referred back to Caidin's own previous novel, Marooned:  "A friend of mine wrote about it — did you ever read the book, Marooned.Marooned is a 1964 science fiction thriller novel by Martin Caidin, about a manned spacecraft returning from a space station which becomes stranded in Earth orbit, oxygen running out, and only an experimental craft available to attempt a rescue.astronauts stranded in an Apollo spacecraft after separation from an Apollo Applications Program space station very similar to the later Skylab program missions actually flown in 1973-74
Edited sentence: In 1971, Soyuz 11 mission ended in tragedy when all three cosmonauts perished during re-entry while returning from Salyut 1, the first manned space station.In the 1969 version, the names are changed to Jim Pruett and Ted Dougherty, with Clayton "Stoney" Stone and "Buzz" Lloyd added to make up the three-man Apollo crew.Library of Congress # 74-80703), Steve Austin refers to Caidin's earlier novel: "A friend of mine wrote about it — did you ever read the book, Marooned.Marooned is a 1964 science fiction thriller novel by Martin Caidin, about a manned spacecraft which becomes stranded in Earth orbit, oxygen running out, and only an experimental craft available to attempt a rescue.astronauts stranded in an Apollo spacecraft after separation from an Apollo Applications Program space station very similar to the later Skylab program missions flown in 1973-74