Speculation around Williams's health highlights the complexities of calorie requirements in space. While astronauts generally ...

While scientists have long known about active volcanoes on the near side of the moon dating back to a similar time frame, the ...

NASA's Viking missions to Mars may have inadvertently eliminated Martian life. The missions used water in experiments to ...

The Exploration Company, the European rival of SpaceX, has achieved another milestone in funding to develop its space cargo ...