Astigmatism (uh-STIG-muh-tiz-um) is a type of refractive error where one or more of the eye’s surfaces are not smooth and/or round. It is broadly classified into two types: regular and irregular.

Sloping terrain distorts the sun-target–sensor geometry, resulting in biases of the optical reflectance measured by remote sensors relative to flat situations. Performing topographic correction (TC) ...

Healthcare-associated infections (HAIs), defined as infections acquired 48 hours after hospital admission or within 30 days of patient care, remain a ...

Researchers at La Trobe University, Australia, and the University of Utah, U.S., report that recent DNA findings challenge ...

The Great Dividing Range is one of the world’s longest and most fascinating mountain ranges, stretching across Australia from Queensland to Victoria. Unlike many mountain ranges that are the result of ...

An international team of scientists have discovered a mysterious, ancient landscape hidden beneath the ice sheet of Eastern ...

East Antarctica is the largest ice sheet on Earth. Alone, it holds enough frozen water to raise global sea levels by a ...

The remains of landscapes thought to have formed when ancient rivers flowed across East Antarctica have been discovered—and ...

The remains of landscapes thought to have formed when ancient rivers flowed across East Antarctica have been discovered – and could help predictions of future loss from the ice sheet.

As tourists are urged to come to Tasmania "for air", pollution in Launceston is forcing some locals to leave. Experts say if wood heaters are used properly, it could help improve air quality.

The slope exists because of the natural topography of St. John's Wood, where the ground was constructed in 1814.

Sediments in a lagoon near Darwin hold traces of changes to monsoonal rains over 150,000 years. Here’s what it means as Earth ...