From the rise of Cyrus the Great in the 6th century BCE to the vast dominion of Darius and Xerxes, the First Persian ...

Abstract: In recent years, the navigation capabilities of mobile robots in off-road environments have increased significantly, opening up new potential applications in a variety of settings. By ...

A monstrous sunspot region 15-Earths-wide is currently so large it can be seen without binoculars or telescopes. But you'll ...

The first false-color image from ESA's newly operational Biomass satellite shows off a unique perspective of the rainforests, grasslands and wetlands surrounding a winding river in Bolivia.

Scientists have long opposed polar geoengineering. Some now believe it will be necessary.

New satellite launched by ESA uses Infrared Sounder instrument to form the most detailed map of Earth's atmosphere.

The first images from the European Space Agency’s MTG-S satellite offer an early look at how the mission will improve weather ...

Scientists have produced a clearer picture of the landscape buried under Antarctica’s ice, revealing rigid valleys, channels, and other features that were previously hard to detect. Those hidden ...

Greenland rarely draws global attention. But as ice melts and great powers inch closer, the world’s largest island has become a strategic prize — one that caught President Donald Trump's eye long ...

Most of the freshwater in the United States isn’t in rivers or lakes. It’s underground, hidden at different depths, and it can change dramatically from one place to the next. A new study offers a much ...