This video from NASA shows a time-lapse of heart cells beating in the microgravity of the international space stating.
The cells – called cardiomyocytes – were derived from stem cells, which in turn came from skin cells.
NASA astronaut Kate Rubens used a microscope to keep a close eye on them before they were returned to Earth in August.
Results will show how cardiomyocytes change on a cellular and molecular level in space, improving understanding of microgravity’s negative effects for astronauts on long missions down the track.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.