Four new astronauts head to the International Space Station for six month stay

Astronauts, front row from left, pilot Michael Barratt, commander Matthew Dominick, second row from left, Russian cosmonaut Alexander Grebenkin, and mission specialist Jeanette Epps (John Raoux/AP)

Four astronauts headed to the International Space Station on Sunday, where they will oversee the arrival of two new rocketships during their half-year stint.

SpaceX’s Falcon rocket blasted off from Kennedy Space Center, carrying Nasa’s Matthew Dominick, Michael Barratt, Jeanette Epps, and Russia’s Alexander Grebenkin.