Photos: Atlas 5 rocket aims for International Space Station

A Merlin engine designed for the version of SpaceX’s Falcon 9 rocket that will carry astronauts into orbit for NASA failed during testing Saturday in Texas, but the company said its upcoming launches will not be affected by the accident.

Riding a self-propelled transporter, an Orbital ATK Antares rocket rolled out to it launch pad Thursday on Virginia’s Eastern Shore for final preparations to send a Cygnus supply ship to the International Space Station.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the another set of 10 next-generation satellites for Iridium’s voice and data relay fleet.