Advertisement Dec. 23 (UPI) -- Space missions to the moon, Mars and beyond often get the most attention, but NASA's Near Space Network does a lot of heavy lifting for humankind's reach for the stars. Advertisement NASA announced on Monday that it has chosen multiple companies to expand what it calls NSN's commercial "direct-to-Earth capabilities services," which allow spacecraft to transmit data directly to ground stations on Earth. It's a system used by the International Space Station, the