NASA's Expedition 44 crew members are harvesting their crop of "Outredgeous" red romaine lettuce today (and tasting it for the first time!), marking the first time astronauts have access to fresh food grown in the microgravity environment of space. The lettuce will be cleaned with citric acid-based wipes before consumption, likely to clean off all the space bugs that found their way into the station. Half the harvest will be eaten while the other half will be preserved and sent back down to Earth for analysis.
The system, appropriately dubbed "Veggie," is the creation of Orbital Technologies Corp. and was tested extensively at Kennedy Space Center. It uses LED lights and hydroponic technology to grow produce in an environment without natural light or water, a process NASA studied extensively, possibly from that guy you know who's really "into gardening" and doesn't have a real job, but somehow has a really nice car that always smells like the Art teacher's supply closet.