Ithaka O. 
Museum of Earth Art [EPUB ebook] 
a short story

One person’s trash is another person’s treasure.
But not all treasures are created equal in a crowded starship.
Ophelia guards the treasures of the Earth, a.k.a. stuff deemed trash on
U.S.S. Ithaka. Every day, the thugs hammer on the door of the Museum of Earth Art, demanding that she vacate the only room that the museum currently occupies so that people can take up that space instead. But more than Ophelia knows depends on her protecting this room full of junk.