Could aliens ever visit Earth? An aerospace scientist unpacks the challenges of interstellar spaceflight
Read More 3 minute read Space Head-on ‘Eye of Sauron’ blazar jet solves cosmic neutrino mystery A rare, head-on view of the blazar PKS 1424+240 reveals how relativistic effects make it a top source of cosmic neutrinos and gamma rays, solving a decade-long mystery. byGil CaparasAugust 20, 2025