Are aliens real? The question has animated conspiracy theories for decades and enthralled at least one former president of ...

Striking images of bright “ red jellyfish ” appearing in the sky above storm clouds have sparked a wave of speculation online, with some social media users even floating theories about alien activity.

This is just one of many stories found amongst Soviet-era files that have been recently released to the public.

A newly described blue jellyfish in Japanese waters has stunned researchers with an otherworldly glow that looks less like a familiar sea creature and more like a visitor from a science fiction epic.

Newly published documents detail investigations into strange aerial phenomena, including several close encounters ...