Top network posts
- 17Pluto's orbit overlaps Neptune's, does this mean Pluto will hit Neptune sometime?
- 9Questions about spiral galaxy arms
- 8Do we still use the term "astronomical unit" nowadays?
- 7Is there any point on earth where the moon stays below the horizon for an extended period of time?
- 5Diameter of any galaxy
- 5Mass, Radius, Colour, Size, Type of a Star from the Hipparcos Catalog
- 5Is the Sun homogeneous?
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