Avi Loeb, the head of Harvard University's astronomy department, believes that it is arrogant to assume we are alone in the universe. Read the article "We Are Not Alone in the Universe, a Harvard Astronomer Insists." Look for our 5 signposts along the way! After you've read, tell us what signposts you've noticed! Find and share at least 4. Give 1 example of each signpost you see by copying and pasting a sentence from the text in your discussion post. Then, explain how that sentence made you think of the signpost!

hancock was president of congress when the declaration of independence was adopted and signed. he is primarily remembered by americans for his large, flamboyant signature on the declaration, so much so that "john hancock" became, in the united states, an informal synonym for signature.

explanation:

umm we do not your answer or what you are talking about

i believe the answer is d : )

#1  sara was always tasked with selecting birthday presents for her friends and family because everyone admired her  impeccable taste. 

impeccable (adj): perfect, flawless

#2  they moved to the united states many years ago, but their  insular  attitudes made it difficult for them to socialize. 

insular (adj): isolated; separate

#3  the professor explained the  semantic  relationship between the two nouns used in the sentence. 

semantic (adj): related to words or the meanings of words 

happy to : )