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 ...

Potassium-Argon dating is similar to Carbon 14 dating because it uses radioactive decay, measuring the rate of change from an unstable isotope, to a stable one. This method is a little different from ...

A remote outcrop in Canada harbors rocks that are at least 4.16 billion years old, researchers report June 26 in Science. If true, these rocks would be the oldest known on Earth and the first to date ...

A new meta-synthesis sheds light on the wide range of motivations that drive people to use dating apps—especially among underrepresented groups such as sexual minorities and older adults. Published in ...