Tag Archives: ‘mostly

Human heart cells are altered by spaceflight, but return to (mostly) normal on Earth

Heart muscle cells derived from stem cells show remarkable adaptability to their environment during and after spaceflight, according to a study publishing November 7 in the journal Stem Cell Reports. The researchers examined cell-level cardiac function and gene expression in human heart cells cultured aboard the International Space Station for 5.5 weeks. Exposure to microgravity… Read More »

Human health can be ‘mostly sustained’ for a year in space, NASA Twins Study concludes

The majority of changes that occurred in Kelly’s body, compared with his identical brother, Mark, on Earth, returned to normal once he came back from the space station. The study results suggest that human health can be “mostly sustained” for a year in space, the researchers said. On a call with reporters Thursday, Mark thanked… Read More »