The International Space Station (ISS) has been in for a bumpy ride recently, with mishaps in supply deliveries meaning stocks are beginning to dwindle.<br /><br /> But on July 3 the unmanned Progress resupply spacecraft lifted off from Kazakhstan and all signs point to a successful connection with the ISS on July 5, as scheduled. <br /><br /> On June 28 a ship carrying cargo exploded just minutes after taking off from Florida, while an earlier mission ended in failure after a resupply craft entered the wrong orbit.<br /><br /> The three-person ISS crew has around four months of supplies on board. The station is expected to be returned to it’s full, six person capacity later in July. <br /><br /> NASA officials say if stocks of food and water dip to 45 days, some of the crew could be forced to return home.