Researchers present an alternative to the long-held “hard steps” theory to explain the evolution of complex life, suggesting ...

For decades, scientists assumed that life on Earth emerged through a chain of highly improbable flukes. But a new theory ...

"We're arguing that intelligent life may not require a series of lucky breaks to exist," said lead author Dan Mills of the ...

According to an alternative model of how intelligent life emerges on planets like Earth, the existence of aliens—and human ...

Roughly 300,000 years ago, our species first appeared on the African landscape before spreading globally and coming to ...

Scientists challenge the idea that intelligent life is rare. They argue that evolution follows planetary changes, not random ...

A new study proposes intelligent life is more likely to emerge than previously thought, driven by planetary conditions.

A popular model of evolution concludes that it was incredibly unlikely for humanity to evolve on Earth, and that extraterrestrial intelligence is vanishingly rare.

“Our existence is probably not an evolutionary fluke,” says Jennifer Macalady, a study co-author and microbiology professor ...

He imagined three possibilities. In one, intelligent life like humans generally arises very quickly on planets, geologically speaking – in perhaps millions of years. In another, it typically ...

A new model increases the probability of intelligent life elsewhere in the universe, upending the ... [+] decades-old “hard steps” theory that intelligent life was an incredibly improbable ...

Intelligent life in the Universe could be far more widespread than previously imagined. A new study has just shaken up a well ...