Answer:
They see things we can't from Earth.
Explanation:
They have discovered solar flares, giant waves, comets, global circulation, coronal mass injections, polar coronal holes, etc. We cannot see these things from earth, so when we create spacecrafts and send them to space, with or without people in them, they study what they see and what it is.
Answer: To tie it to another civil rights movement and bring attention to both plights.
Explanation: As was the fight for civil rights and the ending of discrimination against African Americans, women were deserving of the same rights. Ending the speech in this manner brings light to both fights for equal rights, and again, makes a strong point that justice and rights should be available to ALL since ALL are to abide by all laws.
In the lightning thief by Rick Riordan Luke Castellan wanted power.