Setting (photon) sail for Alpha Centauri

Setting (photon) sail for Alpha Centauri

The potentially Earth-like exoplanet Proxima Centauri b is only 4.22 light-years away. However, even at the speed of Voyager 1, it would take over 75,000 years to reach the Alpha Centauri system. Can impatient humans find a faster way there? Today’s bite explores one possible way to reach the stars.