NASA unfurls giant solar sail that you can see from Earth
Solar sailing eliminates the need for heavy propulsion systems enabling a spacecraft to travel indefinitely
Concerns on the International Space Station: The Starliner began making “strange noises” – Listen to the audio
Astronaut Butch Wilmore, who has been stranded in space for eight months due to a malfunction in the Starliner, reported a "strange noise" coming from the Boeing spacecraft, which has been docked to the ISS since it transported him and his colleague there in early June
Starliner: How will the astronauts return to Earth? NASA faces a tough dilemma
Suni Williams and Barry Wilmore were supposed to stay on the ISS for only one week, but they have now spent three months in space
