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Ronald McNair was nationally recognized for his work in laser physics and was one of the thirty-five applicants selected by NASA from a pool of ten thousand. In 1984, McNair became the second African-American to make a flight into space. He was a mission specialist on the space shuttle Challenger.
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Soldiers would lunge out in groups to attack the enemy, as few as one man or whole unite such as a Roman maniple. This is where such small unit officers like the centurions were so important, leading from the front they exhorted their men to be brave and attack and often led by example and started the attacks.
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Answer:
something that is unexpected
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