ロナルド・マクネア、完全なロナルド・アーウィン・マクネア（1950年10月21日、米国サウスカロライナ州レイクシティー生まれ-飛行中、1986年1月28日にフロリダ州ケープカナベラル沖で死去）、アメリカ人物理学者、チャレンジャーで殺された宇宙飛行士災害。
クイズ
世界一周
アルハンブラはどこですか
McNairは、1971年にノースカロライナ州農業技術州立大学グリーンズボロ校で物理学の学士号を取得し、1976年にマサチューセッツ工科大学（MIT）ケンブリッジで物理学の博士号を取得しました。MITでは、最近、化学レーザーを発明し、化学反応を利用してフッ化水素やフッ化重水素などの気体中の分子を励起し、レーザー光線の誘導放出を生み出しました。マクネアはカリフォルニア州マリブにあるヒューズ研究所のスタッフ物理学者になり、そこでレーザーの研究を続けました。
In 1978 McNair was selected as a mission specialist astronaut by the National Aeronautics and Space Administration (NASA). He, along with Guion S. Bluford, Jr., and Frederick Gregory, were the first African Americans selected as astronauts. His first spaceflight was on the STS-41B mission of the space shuttle Challenger (February 3–11, 1984). During that flight astronaut Bruce McCandless became the first person to perform a space walk without being tethered to a spacecraft. McNair operated the shuttle’s robotic arm to move a platform on which an astronaut could stand. This method of placing an astronaut in a specified position using the robotic arm was used on subsequent shuttle missions to repair satellites and assemble the International Space Station.
McNair was assigned to the STS-51L mission of the space shuttle Challenger in January 1985. The primary goal of the mission was to launch the second Tracking and Data Relay Satellite (TDRS-B). It also carried the Spartan Halley spacecraft, a small satellite that McNair, along with mission specialist Judith Resnik, was to release and pick up two days later using Challenger’s robotic arm after Spartan observed Halley’s Comet during its closest approach to the Sun. However, most of the mission’s fame was due to the selection of teacher Christa McAuliffe as a payload specialist. She was to give at least two lessons from space to students around the world. Challenger launched from Cape Canaveral, Florida, on January 28, 1986, but the orbiter disappeared in an explosion 73 seconds after liftoff, at an altitude of 14,000 metres (46,000 feet). McNair and the six other astronauts in the crew did not survive.
