Humans came from distant galaxies, along with everything else in the Milky Way

Humans are formed from matter that flew billions of miles from another galaxy, according to a new study. Much of the stuff around us and spread throughout our Milky Way is made up of "extragalactic matter", according to the research. The study used computer models to find out how the matter around us came to be acquired by our galaxy. It found that supernova explosions throw out huge amounts of matter from galaxies, spreading it throughout the universe as it is carried on powerful galactic winds. From the International Space Station, Expedition 42 Flight Engineer Terry W. Virts took this photograph of the Gulf of Mexico and U.S. Gulf Coast at sunset This image of an area on the surface of Mars, approximately 1.5 by 3 kilometers in size, shows frosted gullies on a south-facing slope within a crater.