In today's session Sebastian and I went over stars and why they are different. We learnt that there are different types of stars, and they range in sizes and temperatures. The temperatures determine what color the star is but the size is determined by how much matter it collected when created. Then we went over distances from our star, the Sun, to other stars. This had us look into what a light-year is and how the next closest star would take us 4.2 light-years to reach.