1) An exploratory space "lander" has a mass of 600kg. What is its "weight" on earth before it was deployed to Venus for is mission, What is the "weight" of this space vehicle on Venus itself?The mass of Venus is4.867 10²⁴kgand the diameter is12,100 km.Use Newton's law of Universal Gravitation and the gravitational constant 6.67 X 10^-11N-m2/kg². F= (m₁x m₂x G)/d²

2) Please describe the work of Edwin Hubble and how this led to the development of the Big Bang Theory. What are three main pieces of evidence supporting the Big Bang Theory?