A ship full of supplies is on its way to the International Space Station.

Orbital Sciences Corp. launched its unmanned Antares rocket from Wallops Island, Virginia., yesterday after a series of delays.

On board is a capsule packed with 3,000 pounds of equipment, as well as food and some ants for an educational project.

The spacecraft should reach the station Sunday. The delivery had been delayed three times since December, most recently because of a strong solar storm.