Orbital-2,[4][5] also known as Orb-2, was the third flight of the Orbital Sciences' uncrewed resupply spacecraft Cygnus, its third flight to the International Space Station, and the fourth launch of the company's Antares launch vehicle.

The mission launched from the Mid-Atlantic Regional Spaceport (MARS) on 13 July 2014 at 16:52:14 UTC.

This was the second of eight scheduled flights by Orbital Sciences under the Commercial Resupply Services (CRS-1) contract with NASA.

It was the last planned usage of the enhanced Castor 30B second stage for this CRS Orb-x series.

In an Orbital Sciences tradition, the Cygnus spacecraft was named the S.S. Janice Voss after Janice E. Voss, a NASA astronaut and Orbital employee who died on 6 February 2012.