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 ...

If an industrialized civilization had existed on Earth millions of years before our era, what traces would it have left, and could they be detectable today? That is the astounding premise that led ...

The Bureau of Land Management on Thursday denied a Spanish company’s application to build a controversial renewable energy facility in the Mojave Desert’s remote Silurian Valley, deciding the ...

WITH what interest do we look upon any relic of early human history ! The monument that tells of a civilization whose hieroglyphic records we cannot even decipher, the slightest trace of a nation that ...

The Paleozoic era's Silurian period saw animals and plants finally emerge on land. But first there was a period of biological regrouping following the disastrous climax to the Ordovician. The recovery ...

While it may seem like an absurd idea, this thought experiment is the focus of a new scientific paper authored by Adam Frank, an astrophysicist from the University of Rochester, and Gavin Schmidt, ...