Repeat after me... Z-vez-da. Remember that word, because you'll be hearing it a lot over the next few months, and probably years. Zvezda is a space module that weighs about 42,000 pounds. It was launched aboard a Russian Proton K rocket to low earth orbit (LEO) on July 12, 2000. About a year later, it became the cornerstone of the International Space Station (ISS)...