For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable ...

For the first 80% of life's history, Earth was inhabited solely by these microbes. Nothing in biology makes sense except in the light of evolution, as evolutionary biologist Theodosius Dobzhansky ...

Gough’s blowtorch theory and the evolutionary cosmology is, he suggested, “more exciting and attractive right now than the ...

Researchers say they discovered evidence that early Earth was home to more hydrogen than previously thought, calling into ...

Laboratory experiments have coaxed simple molecules into states that naturally become more complex, hinting at the origins of ...

All that said, the findings can’t confirm the terrestrial life theory beyond a doubt. There’s still a chance hydrogen-heavy ...

21, 2025 — What roils beneath the Earth's surface ... for bacterial evolution, suggesting some bacteria used oxygen long before evolving the ability to produce it through ... First Ancient ...

What followed was a cascade of environmental and biological changes that may have shaped the course of human evolution ... life on the ground and transforming the skies. Earth’s magnetic ...

Researchers have helped overturn the popular theory that water on ... the conditions to support life. The origin of hydrogen, and by extension water, on Earth has been highly debated, with many ...