Corona Borealis, the Northern Crown, is an almost-perfect semicircle of stars. In the northern summer of 2024, it might be home to a nova, or "new" star.
Is AI - artificial intelligence - the great filter that alien civilizations are unable to evolve beyond? The threat of AI and our own self-destruction, here.
Two teams of astronomers in Europe say they have found 60 Dyson sphere candidates. Are they alien megastructures or a previously unknown natural phenomenon?