The question of whether aliens exist is not a new one. In science fiction films and books, people have wondered if we’re the only life in this universe and what that can imply for universes beyond ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

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 ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

The Living Worlds Working Group proposes a revolutionary approach to finding life on distant planets. The paper, part of the design phase for NASA’s upcoming Habitable Worlds Observatory (HWO), ...

"Awards like these are a critical component of our incubator program for future missions, which combines government ...

Consciousness could be a fundamental part of reality, like gravity or matter, according to this controversial theory.

Humans have always been fascinated with space. We frequently question whether we are alone in the universe. If not, what does ...

Scientists have shortlisted 100 unusual radio signals from space after a 21-year search using Arecibo Observatory data. While ...

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

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 ...

Beneath Europa's icy shell lies an ocean vaster than Earth's. But is its hidden world buzzing with life, or silent as the ...