Science News Roundup: First all-private astronaut team aboard space station heads for splashdown

Following is a summary of current science news briefs.

First all-private astronaut team aboard space station heads for splashdown

The first all-private astronaut crew to fly aboard the International Space Station (ISS) headed for splashdown Monday off the coast of Florida, wrapping up a two-week mission that NASA has touted as a landmark in commercial spaceflight. A SpaceX Crew Dragon capsule carrying the four-man team of Houston-based startup Axiom Space Inc began its return flight at about 9 p.m. EDT Sunday (0100 Monday GMT) as it undocked from the space station orbiting about 250 miles (420 km) above Earth.