The astronauts evacuated last week from the International Space Station say a portable ultrasound machine came in “super handy" during the medical crisis. During their first public appearance since returning to Earth, the four astronauts refused Wednesday to say which one of them had been ailing or why. But NASA's Mike Fincke told reporters that the crew used the onboard ultrasound machine when the medical problem arose January 7, the day before a planned spacewalk.  The portable ultrasound was so useful that he says there should be one on all future spaceflights.

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President Donald Trump defended his energy and health in an interview with The Wall Street Journal and disclosed that he had a CT scan, not an MRI scan, during an October examination about which he and the White House delayed offering details. Trump, in the interview, said he regretted undergoing the advanced imaging on his heart and abdomen during an October visit to Walter Reed National Military Medical Center because it raised public questions about his health. His physician said in a memo the White House released in December that he had “advanced imaging” as a preventative screening for men his age.