Evidence of algae growth and climate simulations reveal the Arctic had seasonal ice, not a permanent ice shelf, for much of the past 750,000 years. These insights challenge long-standing theories. For ...

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

A dated sediment core from Lake Thun covering the last 120 years was analyzed to get an overview of the historical trend of the chlorinated paraffin (CP) and polychlorinated biphenyl (PCB) deposition, ...

Mars may not have always been the dry and dusty world we imagine. A staggering network of ancient riverbeds, spanning over 15 ...

Giant mounds of sand discovered beneath the North Sea off Norway may scramble what we know about a key geological process.

The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first ...

A team of scientists put together a global database of submarine mud volcanoes. Orders of magnitude more are still bubbling, ...

Following the removal of four dams from the Klamath River, which flows through California and Oregon, a group of young ...

Automatic road extraction from historical maps is an important task to understand past transportation conditions and conduct spatiotemporal analysis revealing information about historical events and ...

The legend of Atlantis never really disappears. It gets revisited, adjusted, and debated when new findings raise fresh questions. Lately, professionals have focused their attention on locations in ...

I am hiking along the Metacomet Ridge in Greenfield, Massachusetts – a rather steep basaltic structure, modestly less than five hundred feet high and topped by a stately brick tower constructed in ...