science, tech, engineering, astronomy, space
published on: 2014-02-21 21:54:39
psydoctor8: Is the Universe a Simulation? Mathematical knowledge
Cause, Science!
jtotheizzoe: Astronaut Mae Jemison is working on an ambitious
leslieseuffert: Anna Maksimyuk (Moscow) Deep Space, 2013
science-junkie: A lost city reveals the grandeur of medieval
spaceplasma: What is a gamma-ray burst? Gamma-ray bursts (GRBs)