Add Yahoo as a preferred source to see more of our stories on Google. an astronaut floats in space beside a superimposed graphic of a protein Scientists have discovered how living cells may respond ...

Simulated effects of microgravity, created by 60 days of constant bed rest, severely disrupts rhythmic gene expression in humans, according to a new study. Simulated effects of microgravity, created ...

Dear Doctors: As a former NASA mission planner, I would signal a "no-go" for human colonization of the moon and Mars. The human body's functions cannot tolerate the long-term effects of a low-gravity ...

As space travel gains traction and astronauts spend increasing amounts of time in space, studying its effects on health has become increasingly critical. Is space travel truly safe? Far from ...

The most prominent stressors are prolonged microgravity exposure, radiation exposure, and psychosocial stressors, which have ...

Infectious microbes have evolved sophisticated means to invade host cells, outwit the body’s defenses and cause disease. While researchers have tried to puzzle out the complicated interactions between ...

Aboard the International Space Station, astronauts work to study how the microgravity atmosphere affects human health, such as muscle development and bone structure. As part of a project to look at ...

Anil Menon discusses his upcoming ISS mission, commercial space stations, and the unanswered medical questions of life in ...