Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

Most people are busy with life on Earth. They rarely get the chance to think deeply about complex topics. And so they take the ideas of why we know certain things with relatively equal values — maybe ...

Radiometric normalisation is a critical preprocessing step in the analysis of satellite imagery, aimed at mitigating the effects of atmospheric variability, sensor calibration differences, ...

Using a method applied directly to ancient hominin teeth, researchers have calculated the age of several important fossils. Measuring the concentration of radioactive elements in a single, sand-size ...