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 ...

Over-the-horizon radar (OTHR) is of significance in persistent surveillance. To localize targets, coordinate registration (CR) has to be carried out to transform the coordinates of the targets from ...