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

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...