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 ...

The rocky planet circling the closest star to the sun got hammered by a superpowerful flare last year, a new study reports. That's a bit of bad news for anyone hoping that the alien world, known as ...

Proxima Centauri b is the closest known exoplanet that could be in the habitable zone of its star. Therefore, it has garnered a lot of attention, including several missions designed to visit it and ...

News that a NASA scientist has announced fresh progress on Proxima b has pushed our nearest known exoplanet neighbor back into the spotlight, sharpening long-running questions about whether this rocky ...

Proxima b is very promising. It orbits a red dwarf star called Proxima Centauri in a system with three stars in it. Proxima Centauri is small. It only has between 7.5% and 50% of our Sun’s mass.