Photos: Atlas 5 rocket aims for International Space Station

NASA astronauts Bob Behnken and Doug Hurley completed their final training sessions in Houston this week before their scheduled May 27 liftoff on a SpaceX Dragon spacecraft from the Kennedy Space Center, the first launch of humans from the Florida spaceport since 2011.

Several NASA astronauts, plus Boeing test pilot Chris Ferguson, recently participated in a training session at Cape Canaveral, practicing how they would evacuate from the Atlas 5 rocket’s launch pad in the event of a countdown emergency.

The planned liftoff Thursday of an Indian Geosynchronous Satellite Launch Vehicle with a geostationary Earth-imaging satellite has been postponed due to technical reasons, India’s space agency announced.