Before the first human boot sinks into Martian dust, an army of machines will have already been at work for years, testing the air, carving out shelter and assembling the hardware that keeps people ...

Mars used to have a warmer and wetter climate, which changed after billions of years because the Sun's solar wind removed ...

The humans who move to Mars might not remain "human" for very long. Evolution is a powerful force, transcending planetary boundaries. As Rice University biologist Scott Solomon points out in his ...

Add Yahoo as a preferred source to see more of our stories on Google. The idea of humans living on Mars is closer to reality than it’s ever been. On Feb. 13, Elon Musk’s SpaceX ferried an ...

When astronauts set foot on Mars, it will be one of humanity’s greatest milestones. These first steps will be the result of decades of research, engineering, and imagination coming together, marking ...

Keeping astronauts strong and healthy in microgravity is no easy feat. Those serving six-month missions aboard the International Space Station must exercise for two hours per day to stave off muscle ...

The idea of humans living on Mars is closer to reality than it’s ever been. On Feb. 13, Elon Musk’s SpaceX ferried an international crew of four astronauts to the International Space Station, another ...