What stage of the Americans space program was the Space Shuttle? What was so amazing about the program? I really need some help ;~;

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

Describe a strategy to reduce the amount of fossil fuel‘s people use in the united state

Write the formula for the area of a triangle, a, where b is the base and h is the height of the triangle. don’t include parentheses in your answer.