Health

Lost in space: Astronauts struggle to regain bone density

Astronauts lose decades' worth of bone mass in space that many do not recover even after a year back on Earth, researchers said Thursday, warning that it could be a "big concern" for future missions to Mars.

Biomedical technology

How space tech can help the world fight the pandemic

Michael Strahan, former football star and host of "Good Morning America," will be taking off with a crew of five other passengers on Dec. 9, amidst a global pandemic and rising cases of the new omicron variant.

Neuroscience

How deep space travel could affect the brain

Exposure to chronic, low dose radiation—the conditions present in deep space—causes neural and behavioral impairments in mice, researchers report in eNeuro. These results highlight the pressing need to develop safety ...

Cardiology

Skoltech scientists unveil a new cardiac monitoring gadget

A team of Skoltech researchers has created a device that can monitor a cosmonaut's cardiovascular system during pre-flight training, space mission and after-flight rehabilitation. The results of their study were published ...

Psychology & Psychiatry

Why we won't get to Mars without teamwork

If humanity hopes to make it to Mars anytime soon, we need to understand not just technology, but the psychological dynamic of a small group of astronauts trapped in a confined space for months with no escape, according to ...

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Astronaut

An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. While generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.

Until 2003, astronauts were sponsored and trained exclusively by governments, either by the military, or by civilian space agencies. However, with the sub-orbital flight of the privately-funded SpaceShipOne in 2004, a new category of astronaut was created: the commercial astronaut.

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