history, science, archeology, anthropology, civilizations, africa
published on: 2014-02-21 21:58:18
jtotheizzoe: Astronaut Mae Jemison is working on an ambitious
leslieseuffert: Anna Maksimyuk (Moscow) Deep Space, 2013
spaceplasma: What is a gamma-ray burst? Gamma-ray bursts (GRBs)
nekama: how do people on tumblr become so interesting that people
The scumbag in me is gonna do this.
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