Almost seven decades of humans in space, plus over 25 years of continuous habitation, have shown us how incredibly adaptable ...

"From a physics point of view, the limitation is the speed of light," he said. "The challenge is not only how fast we can go, but do we have materials that will withstand the speeds we want to go?" ...

Humanity’s quest to reach Alpha Centauri A examines revolutionary concepts from laser-propelled Starshot probes to ...