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NASA Astronaut Group 2

NASA Astronaut Group 2 was the second group of astronauts selected by NASA; their names were announced on September 17, 1962. President Kennedy had announced Project Apollo, with the goal of putting a man on the Moon by the end of the decade, and more astronauts were required to fly the two-person Gemini spacecraft and three-person Apollo spacecraft then under development. The Mercury Seven had been selected for the simpler task of orbital flight, but the challenges of space rendezvous and lunar landing led to the selection of candidates with advanced engineering degrees (for four of the nine) as well as test pilot experience. The nine were Neil Armstrong, Frank Borman, Pete Conrad, Jim Lovell, James McDivitt, Elliot See, Tom Stafford, Ed White and John Young. Six of the nine flew to the Moon (Lovell and Young twice), and Armstrong, Conrad and Young walked on it as well. Seven of the nine were awarded the Congressional Space Medal of Honor. (This article is part of a featured topic: NASA Astronaut Group 2.)

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The Grand Canyon of the Yellowstone (1872)
The Grand Canyon of the Yellowstone (1872)

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Jason Sudeikis in 2019
Jason Sudeikis

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September 17: Constitution Day in the United States (1787)

Smoke rising above Amman during Black September
Smoke rising above Amman during Black September
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Distinctive feature

In linguistics, a distinctive feature is the most basic unit of phonological structure that distinguishes one speech sound from another within a language. They are grouped into categories according to the natural classes of segments they describe: major class features, laryngeal features, manner features, and place features. These feature categories are in turn further specified on the basis of the phonetic properties of the segments in question. This Euler diagram illustrates a typical classification of speech sounds, represented in the International Phonetic Alphabet, with the relationship between manners of articulation and related categories, including distinctive features.

Diagram credit: Nardog

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