International Space Station, Astronauts
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A SpaceX capsule departed the International Space Station on Wednesday carrying a four-member crew on an emergency return flight to Earth necessitated by an undisclosed serious medical condition afflicting one of the astronauts aboard.
Crew 11 is expected to splash down off the coast of Southern California at 3:41 a.m., closing out a 167-day stay in space.
In a new study, terrestrial bacteria-infecting viruses were still able to infect their E. coli hosts in near-weightless "microgravity" conditions aboard the International Space Station, but the dynamics of virus-bacteria interactions differed from those observed on Earth.