The launch of an Orbital ATK Antares rocket on Saturday morning will be the first of four launches planned over the next five days. The Antares will launch a Cygnus resupply ship to the International Space Station. It is the second flight of the re-engineered Antares booster, which includes two Russian-made RD-181 engines in its first stage. Launch time is set for 7:37 a.m. EST (1237 GMT) from Wallops Island […]