Breaking space news, the latest updates on rocket launches, skywatching events and more! You are now subscribed Your newsletter sign-up was successful Want to add more newsletters? A SpaceX Dragon cargo capsule will undock from the International Space Station today (Feb. 26), and you can watch its departure live. The robotic Dragon is expected to depart today at 12:05 p.m. EST (1705 GMT), ending a roughly six-month orbital stay during which it demonstrated a novel ISS-boosting capability. You can watch undocking live here at Space.com courtesy of NASA, or directly via the space agency. Coverage will begin at 11:45 a.m. EST (1645 GMT). The Dragon arrived at the International Space Station (ISS) on Aug. 25, delivering about 5,000 pounds (2,270 kilograms) of supplies and scientific gear to the astronauts aboard the orbiting lab. It was the 33rd such robotic cargo run that SpaceX has performed for NASA's Commercial Resupply Services program.…