Live video of the docking of a Progress cargo ship with the space station

European technicians working at the Baikonur Cosmodrome in Kazakhstan have bolted an Italian-built Mars lander to its mothership ahead of a March 14 launch toward the red planet.

Two days after departing from a launch pad on Florida’s Space Coast, a SpaceX Dragon cargo capsule arrived at the International Space Station on Wednesday with more than 6,400 pounds of experiments and supplies after concluding an automated laser-guided approach.

Space station commander Chris Cassidy and Robert Behnken floated back outside Tuesday for their fourth spacewalk in less than a month, completing preparations for future upgrades including the eventual installation of an airlock that will allow commercial experiments to be moved into and out of vacuum as required.