Image Cache: Yesterday at 04:12 Moscow time, the orbit of the International Space Station was corrected a bit, thanks to help from the thrusters on a Russian service module called Zvezda, or “Star.” Star’s small engines were fired for just over two minutes, with a pulse of 2 meters per second. That increased the flight altitude of the station by 3.7 kilometers, or about 2.2 miles — now, it sits at about 405 kilometers, or 251 miles. In the photo above, you can see the thrusters firing early yesterday morning.