America's longest serving space shuttle, Discovery, has docked with the International Space Station for the last time.
This trip to space is set to be the ship’s last, as the US retires its quarter-of-a-century-old fleet.The shuttle delivered tens tons of cargo and scientific equipment to the ISS.It also presented a rare photo-op, as six different spaceships are now docked at the ISS.Upon its return to Earth, it will be ferried off to a museum, where it will soon be joined by its sister ships Endeavour and Atlantis.The decommissioning will effectively end manned US spaceflight.Also check out: US leaves space for Russia