A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Imagine a planet orbiting the largest known star, Stevenson 218. This video explores the tantalizing scientific possibility of alien worlds around a red supergiant. We examine the challenges of ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...

Until then, all nine episodes of Pluribus can be streamed on Apple TV.

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...