Gallery: Antares rocket explodes

The Orbital ATK commercial Cygnus resupply vessel departed the International Space Station on Friday after 72 days spent at the outpost, delivering more than 7,000 pounds of cargo and taking away 3,000 pounds of trash.

With investigators zeroing in on a decades-old rocket engine as the cause of a catastrophic launch mishap, Orbital Sciences officials said the company plans to use other launchers to send cargo to the International Space Station while modifying its Antares rocket with a new propulsion system.

Closing out a three-day chase from a launch pad in Virginia, Orbital ATK’s Cygnus cargo freighter arrived Thursday at the International Space Station with nearly 7,400 pounds of equipment, delivering food, a quantum physics experiment, and CubeSats for later deployment in orbit.