3I/ATLAS was just a comet – but could we have defended ourselves if it was aliens?

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...
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12 spectacular night sky events to see in 2026—from a total eclipse to impressive auroras

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for. Solar prominences and their associated ...