SciencefromBig Think1 week agoThe Sun is fainter than the Moon, at least in gamma-raysThe Sun is the brightest object in Earth's skies while the Moon appears bright via reflected sunlight, though the Moon emits significant gamma-rays unlike the Sun.
SciencefromFuturism1 month agoAstronomers in Awe of Terrifying "Eye of Sauron" That's Pointed Straight at EarthThe cosmic blazar PKS 1424+240, nicknamed the 'Eye of Sauron', emits jets of plasma at Earth and is the brightest neutrino-producing blazar.