Twelve pilots flew the X-15 rocket plane off the wing of a B-52 to the edge of space — eight earned US astronaut wings for flights above 50 miles, and Joe Walker crossed the 100-kilometre Kármán line twice in 1963. For a decade it seemed winged rocket planes, not capsules, would be the path to orbit; the program ended in 1968, a year after Michael Adams died in a re-entry breakup, and the winged path lay dormant until the Shuttle partially revived it.
X-15 rocket-plane pilot已不复存在。这里整理是什么消灭了它，以及哪个职业接手了那份工作。
1957–1969
Test pilots with a new job title
The first astronauts were chosen for the ability to stay useful inside a malfunctioning machine: military test pilots, screened by intrusive medical programs neither country fully understood the need for. Mercury, Vostok and Gemini flights lasted hours to days, and the crews fought their own engineers for the right to actually fly the vehicles — a struggle Tom Wolfe later immortalized as the argument over whether they were pilots or "Spam in a can."
当时还发生了什么
1959
The Mercury Seven
On 9 April 1959 NASA presented its first seven astronauts — all military test pilots, screened from 508 records — at a Washington press conference where reporters treated them as heroes before any had flown. The template they set, cool competence under absurd risk, defined the job's public image for decades.
1961
Gagarin orbits the Earth
On 12 April 1961, Yuri Gagarin rode Vostok 1 through a single 108-minute orbit, calling out "Poyekhali!" — "Let's go!" — at liftoff. He ejected at seven kilometres and parachuted into a Saratov field, a detail kept secret for years because record rules required landing with the craft. He launched a senior lieutenant and landed a major.
1963
Tereshkova, the first woman
Valentina Tereshkova, a 26-year-old textile-factory worker chosen for her amateur parachuting, flew 48 orbits over three days aboard Vostok 6 in June 1963 — at that point more time in space than all American astronauts combined. No other woman flew until 1982; she remains the only woman ever to fly to space alone.
1965
Leonov walks in space
On 18 March 1965 Alexei Leonov floated out of Voskhod 2 for twelve minutes — and nearly died returning: his suit had ballooned rigid in vacuum, and he silently vented its pressure toward the edge of decompression sickness to squeeze back into the airlock head-first. Spacewalking has been the job's defining physical craft ever since.
那份工作如今在哪里
The rarest job on Earth is practiced off it: roughly 700 people have ever held it, from Gagarin's 108 minutes to year-long tours on the space station.
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