Far from our solar system, astronomers have finally watched a star consume one of its own planets, catching in real time a process that will eventually reshape, and likely erase, the world we live on.

Australia’s ancient rocks are acting like natural clocks, revealing how landscapes changed over billions of years through cosmic radiation, helping scientists understand Earth’s past and future.

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes that ...