Science News Roundup: NASA astronaut Christina Koch returns to Earth after record mission

Following is a summary of current science news briefs.

NASA astronaut Koch returns to Earth after record space mission

A capsule carrying a crew of three from the International Space Station, including record-setting United States astronaut Christina Koch, landed in Kazakhstan on Thursday, a live feed by Russian space agency Roscosmos showed. The touchdown on a snow-covered steppe also marked the return to earth of Italian astronaut Luca Parmitano and Russia's Alexander Skvortsov.

Boeing's botched Starliner test flirted with 'catastrophic' failure: NASA panel

Boeing narrowly missed a "catastrophic failure" during its December flight test of an unmanned space taxi that was cut short by an unrelated problem, a NASA safety review panel said Thursday, recommending that the agency examine Boeing's software verification process before letting it fly humans to space. The newly revealed software bug, which Boeing said was fixed while the CST-100 Starliner was still in orbit, could have "led to erroneous thruster firings" that could have resulted in "a catastrophic spacecraft failure," panel member Paul Hill said.

Data suggests virus infections under-reported, exaggerating fatality rate

Fatalities from the coronavirus epidemic are overwhelmingly concentrated in central China's Wuhan city, which accounts for over 73% of deaths despite having only one-third the number of confirmed infections. In Wuhan, the epicenter of the disease, one person has died for every 23 infections reported. That number drops to one on 50 nationally, and outside mainland China, one death has been recorded per 114 confirmed cases.

NASA astronaut Christina Koch returns to Earth after record mission

American astronaut Christina Koch, who led the first all-female spacewalk in 2019, landed in Kazakhstan on Thursday after a record stay on the International Space Station, ending a 328-day mission expected to yield new insights into deep-space travel. Koch, a North Carolina-born engineer who joined NASA's astronaut corps in 2013, set the record for the longest stay in space by a woman. Her mission will provide researchers valuable data on how weightlessness and space radiation affect the female body on long spaceflights.