Q&A with Mark Sirangelo, leader of Sierra Nevada Space Systems

A Russian Progress cargo freighter lifted off Wednesday from Kazakhstan on top of a Soyuz-2.1a booster and completed a record-breaking 3-hour, 19-minute pursuit of the International Space Station with an automated docking to deliver 2.7 tons of food, fuel, water and other supplies.

A Russian automated cargo craft loaded with nearly three tons of fuel, supplies, water and air is set for launch from Kazakhstan at 2141 GMT Saturday on a mission to replenish stockpiles aboard the International Space Station.

A commercial Antares rocket rolled out of a hangar on a one-mile trip to its launch pad on Virginia’s Eastern Shore on Thursday, ready for final countdown preparations ahead of liftoff Saturday morning on a cargo delivery flight to the International Space Station.