I've known about astronaut and electrical engineer Christina Koch for several months, but it's only very recently that I learned more details about her life. She's currently the record holder for the longest space flight by a woman, and you can read about her at space.com: https://www.space.com/record-breaking-astronaut-christina-koch-female-space-records.html
There's a fun interview with her, during which she does a neat microgravity trick. Much more importantly is her perspective on long term spaceflight. And this isn't her first time in extended isolation. In 2004 through 2007 she traveled the arctic and Antarctic regions, and also spent a winter season at the South Pole, where she experienced -111 degree temperature. She's been a member of firefighting and ocean glacier search and rescue teams. She helped invent an x-ray spectrometer for NASA, among other things.
A cool video of 5 things about her can be found here: https://www.youtube.com/watch?v=h5T37kIEXa8
Number 5 on that list is that she traveled and worked in Ghana – and so did my daughter Jamie! (I admit my wife Ellen and I were not happy about Jamie's original plans for that trip. Ebola was breaking out in nearby Nigeria and Cote d'Ivore at the time.)
Ms. Koch will be returning to Earth on 6 February, and I wish her a very safe flight home. I think I might have one of her descendants show up on Pearson Space Station or elsewhere in the solar system for my follow-up to my MG/SF novel The Other Side of Space. I already have Dr. Maggie Jemison in the first book – a fictional descendant of the real astronaut Dr. Mae C. Jemison. (Maggie saves Jason's life, by the way, and helps him to save... oops. You'll just have to read the book!)