Gallery: Antares rocket explodes

Frank Culbertson, a former shuttle and station astronaut and now head of Orbital ATK’s space systems group, spoke with Spaceflight Now’s Stephen Clark on the sidelines of the 2015 International Symposium for Personal and Commercial Spaceflight.

The International Space Station received more than 2.5 tons of fresh supplies and experiments Sunday with the arrival of a commercial Cygnus cargo vessel after an automated laser-guided rendezvous.

More photos show the successful liftoff of the United Launch Alliance Atlas 5 rocket flight carrying the Cygnus commercial cargo spacecraft for Orbital ATK and the International Space Station.