Closest star's brightness increased by 1000 times for 10 sec
Astronomers have reported a stellar flare, an energetic burst of radiation from Sun's nearest star Proxima Centauri, which increased the star's brightness by 1,000 times for 10 seconds. Being 10 times brighter than Sun's largest flares, the Proxima Centauri's flare made scientists question exoplanet Proxima b's habitability, which orbits its star 20 times closer than the Earth orbits the Sun.