Live coverage: Kennedy Space Center to reopen Friday

Scientists crunching data from NASA’s orbiting TESS planet-hunting observatory have discovered a potentially habitable Earth-sized world circling a star a bit more than 100 light-years from the sun, the first such detection by the TESS mission since its launch in 2018, astronomers announced this week.

America’s most experienced space flier and her three private astronaut crewmates undocked from the International Space Station and plunged back to Earth late Tuesday, blazing through the night sky like a fiery shooting star before splashing down in the Gulf of Mexico.

Engineers clad in clean suits finished stowing last-minute cargo into SpaceX’s Dragon supply ship Friday, including 40 mice and bacterial research specimens, a day before it is scheduled to blast off to the International Space Station in the first flight from the Kennedy Space Center’s historic Apollo-era launch pad 39A since 2011.