Lecture 1 - Intro

Question 1

on large, cosmological scales, the universe is:

Answer 1

1. homogenous (the same everywhere)
2. isotrophic (looks the same in every direction)

Question 2

what is EUROPA?

Answer 2

smallest Galilean moons (out of 4) and orbits jupiter

Question 3

europa is the _th largest moon in the solar system

Answer 3

Europa is the 6th largest moon in the solar system

Question 4

describe the composition of europa (3)

Answer 4

• silicate rock
• water-ice crust
• iron-nickel core

Question 5

describe the atmosphere of europa

Answer 5

thin atmosphere, mainly made of O2

Question 6

Describe the surface of europa

Answer 6

white-beige surface with light tan cracks and streaks and few craters

smoothest surface of any known solid object in the solar system

Question 7

why might europa have the smoothest surface of any known solid object in the solar system?

Answer 7

there may be a water ocean beneath the surface with extra-terrestrial life