**The space shuttle Endeavour is set to return to Earth after a 16-day mission to the International Space Station.**The first attempt to touch down is scheduled for 1547 BST (1047 EDT) at Nasa’s Kennedy Space Center.
The weather forecast is favourable for a landing in Florida, although a slight chance of rain is possible, Nasa said.
Endeavour blasted off on 15 July with its crew of seven astronauts after weather concerns scuppered five launch attempts.
Their arrival at the ISS raised the number of crew on the orbiting outpost to 13 - a record for the space station.
The station, now about the size of a four-bedroom house, has been under construction for more than a decade.
Endeavour’s crew delivered and installed fresh batteries, large spare parts and a “porch” for Japan’s Kibo science laboratory. This addition to the onboard lab is designed to hold outdoor experiments.
Five spacewalks were undertaken during the course of the mission.
Crew members also shared some unexpected inconveniences, most notably a flooded toilet aboard the space station.
Endeavour will bring home Japanese astronaut Koichi Wakata, who has spent 138 days in space and has been a member of three separate space station crews.
US astronaut Tim Kopra launched aboard Endeavour and will remain on the station.
Discovery will be next to fly to the ISS; its launch is scheduled for 18 August at 0925 BST (0425 EDT).