The Nearest Stars to Earth for the universe's great vacation spots less than 100 parsecs from Earth.
A Billion Degrees of Separation #Infographic #infografía
NASA May Have Accidentally Created a Warp Field
Nacimiento y muerte de una estrella y sus fases
dark matter and dark energy
Human Body Elements
50 Years of Human Space Exploration. This is by far the coolest pin I will see tonight. So amazing as to how far the space exploration campaign(s) has come since we first step foot into the putter abyss!