Hydroponics will be used by NASA to feed astronauts fresh vegetables during long flights into space; even lettuces are grown on submarines using these techniques. Due to the different sizes of systems available and the unlimited design that systems can be made into, you can grow in any location. As the systems are self-contained, lightweight and clean, they can be used indoors during the winter – in a conservatory, greenhouse, cellar, attic, garage or kitchen. Then they can even be moved outside in the summer months.