Is it possible that another civilization existed before us? That's the question posited by the Silurian Hypothesis.

What if humans aren’t the first advanced civilization on Earth? According to the Silurian Hypothesis, a technologically ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The universe is vast, ancient, and mostly silent. For decades, scientists have pointed their telescopes toward distant stars, ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Would it be possible that an industrialized civilization existed on Earth before the current human civilization? Two scientists proposed a hypothesis that says that if an industrial civilization did ...

The Silurian hypothesis asks whether it might be possible to find evidence of a pre-human industrial civilization in Earth’s geologic record—even one that might have existed millions of years ago. The ...

Earth is completely overrun with humans -- there are billions of us living and dying on this planet, leaving signs of our existence in the soil, atmosphere, and even in space. Are we the first, though ...

When it comes to direct evidence of an industrial civilization—things like cities, factories, and roads—the geologic record doesn’t go back past what’s called the Quaternary period 2.6 million years ...

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Our Milky Way galaxy contains tens of billions of potentially habitable planets, but we have no idea whether we're alone. For now Earth is the only world known to harbor life, and among all the living ...

Earth is completely overrun with humans -- there are billions of us living and dying on this planet, leaving signs of our existence in the soil, atmosphere, and even in space. Are we the first, though ...