How did satellites impact scientific understanding of space during the late 20th century?

-satellites allowed astronauts to successfully navigate around the moon.
-satellites allowed for more accurate predictions of solar flares.
-satellites provided images from surrounding solar systems that confirmed the existence of other planets with water.
-satellites provided high resolution photos that scientists research the origins of the universe

With state which alliance promoted goals and protection of the united states and which alliance promoted goals and protection of the soviet union. site and explain evidence from each primary source to support your answers.

What advantages did the ming dynasty gain from the land it controlled?

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product