Laser sail propulsion is an idea that won't go away. By aiming powerful Earth-based lasers at tiny spacecraft with light sails, tiny spacecraft can be accelerated to near-relativistic speeds without ...

NASA could one day send a fusion-powered probe to Proxima Centauri b - a potentially habitable exoplanet located just over four light years from Earth - with new research indicating the mission could ...

Humanity has always looked to the stars as our ultimate destination, with Proxima b—our potentially habitable neighbor—beckoning us from just 4.2 light-years away. But the dream of setting foot on ...