Astronomers define our place in the cosmos Cosmos. As the Milky Way hurtles through space, it doesn't travel alone. It is part of a galactic supercluster which a team of astronomers has just succeeded in mapping. Their map, which graces the cover of Sep
Human Body Ingredients via imaginaryfoundation: 'The average human has approximately 100 trillion cells and each cell is made of approximately 100 trillion atoms, each of which were originally created in the center of a star.' Here it is by mass: http:/
Three newly-discovered streams arcing high over the Milky Way Galaxy are remnants of cannibalized galaxies and star clusters. The streams are between and light-years distant from Earth and extend over much of the Northern sky.