Rewrite the sentence to improve emphasis, using the guidelines in parenthesis. The flights of man into space are truly astonishing (inverted sentence)
Are you supposed to invert that sentence?
yes
Are you clear on the meaning of "invert"?
http://www.answers.com/invert
How will you revise this sentence so it's inverted?
Truly astonishing are the flights of man into space.
To invert the sentence and improve emphasis, simply move the adverbial phrase "truly astonishing" to the beginning of the sentence. This change in word order helps to place emphasis on the phrase and create a more impactful statement.