Thanks to the sheer mass of Jupiter and fellow gas giant Saturn, the Solar System barycenter is rarely in the center of the ...

For more than 25 years, humans have lived and worked continuously aboard the International Space Station, conducting research that is transforming life on Earth and shaping the future of exploration.

The primal human experience of gazing into an unblemished cosmos is vanishing, being replaced by a dense, industrial field of 15,000 orbiting satellites with plans for half a million more by 2040. Joe ...