The Boeing-produced Starliner spacecraft landed back on Earth after setting off from the International Space Station (ISS) without its crew following numerous technical problems. The spacecraft undocked from the space outpost at 6:04 pm on Friday (2204 GMT) after three months in space. It landed at White Sands Space Harbor in the US state of New Mexico at at 0:01 am, a NASA live stream showed. NASA astronauts Barry Wilmore and Suni Williams, who travelled to the ISS aboard the Starliner in June, remained in space following engine problems and helium leaks on the spacecraft. Their stay was only…