Boeing is closer to understanding thruster failures on its first astronaut flight with latest test Phys.orgNASA’s Sunita Williams conducts emergency drill on space station; Boeing Starliner remains stuck in space for 41 days Business TodayFixing Boeing’s leaky Starliner — and returning NASA’s stranded astronauts to Earth — is much harder than it sounds Livescience.comSunita Williams is testing ways to water space plants, but when will she return? MintScience – Are two NASA astronauts stuck in space and how can they come home? FRANCE 24 English