Rocket Lab USA Inc. (NASDAQ:RKLB) reported its first-quarter financial results after the bell Monday. Here's a look at the highlights.  The Details: Rocket Lab reported quarterly losses of 9 cents per share which beat the analyst consensus estimate of losses of 10 cents by 10% and represents a 10% increase over losses of 10 cents per share from the same period last year. The company reported quarterly sales of $92.767 million which missed the analyst consensus estimate of $94.995 million by 2.35% and is a 68.99% increase over sales of $54.895 million year-over-year. Rocket Lab highlighted that it closed the first quarter with more than $1 billion in backlog, launched four Electron missions ...