99 points plz lesson 5.01 what astronomical bodies exist in our universe? what hierarchy exists in the universe? how can the speed of light determine distances in space? what are some units of measurement used for distances in space? lesson 5.02 how are galaxies classified? what is the structure of our galaxy? lesson 5.03 how do stars form within nebulas? how do a star's temperature and size affect its appearance? how is an hr diagram created? lesson 5.04 what is the structure of the sun? what are the physical properties of the sun lesson 5.06 how do wavelength and frequency compare on the electromagnetic spectrum? what are the different forms of radiation on the electromagnetic spectrum? how is the electromagnetic spectrum used to examine astronomical objects? lesson 5.07 what are some technologies used for exploring space? how has space technology been adapted for personal use? how can space exploration impact the economy and culture of a region?