Lockheed Martin [LMT] first quarter sales grew slightly from $15 billion last year to $15.1 billion this year on the strength of 16 percent sales growth in the space sector, which saw a $400 million revenue increase from about $2.6 billion last year to nearly $3 billion this year. Operating profit in the space business area increased from $252 million to $280 million, the company said. Jay Malave, Lockheed Martin's chief financial officer, said during an Apr. 18 company earnings…
