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visits member for 10 months
seen Nov 11 at 2:32

Nov
11
awarded  Critic
Oct
27
asked What will happen to our solar system if the milky way collided with Andromeda galaxy, would any planets survive?
Feb
17
awarded  Scholar
Feb
17
awarded  Supporter
Feb
17
accepted How is the magnitude of a star measured?
Feb
7
awarded  Student
Feb
7
awarded  Teacher
Feb
7
answered How can we tell that the Milky Way is a spiral galaxy?
Feb
7
asked How is the magnitude of a star measured?