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lilacfrog729Lv1
6 Oct 2020
Distances in space are often quoted in units of light years, the distance light travels in one year. (a) How many meters is a light year? (b) How many meters is it to Andromeda, the nearest galaxy, given that it is light years away? (c) The most distant galaxy yet discovered is light years away. How far is this in meters?
Distances in space are often quoted in units of light years, the distance light travels in one year. (a) How many meters is a light year? (b) How many meters is it to Andromeda, the nearest galaxy, given that it is light years away? (c) The most distant galaxy yet discovered is light years away. How far is this in meters?
Rochelle EnreraLv10
29 Oct 2020