Four centuries from launch, a vast spacecraft could deliver thousands of people to a world orbiting the nearest star. The concept, called Chrysalis, is designed for one purpose — to take humanity to ...

If this space habitat ever becomes a reality, it could take us all the way to exoplanet Proxima b.

Chrysalis spacecraft: A spaceship capable of transporting 2,400 humans on a multigenerational, one-way trip to Alpha Centauri, the nearest star system to our own, got the first prize in the Project ...