Spacecraft

CNN -  Two NASA astronauts will extend their stay on the International Space Station as crews on the ground work to better understand issues with the Starliner spacecraft that carried them into orbit. Since the historic crewed launch on June 5, the astronauts have navigated a number of issues with the Boeing-built vehicle — including malfunctioning thrusters and a series of helium leaks. Boeing and NASA said Tuesday that Suni Williams and Butch Wilmore — who arrived at the space station on June 6 for what was estimated to be roughly a weeklong visit — will not return home before June 26. The mission aims to further research and expand the United States' options for ferrying astronauts to the space station in collaboration with private industry partners.