Just how long has the universe been around? Scientists estimate the universe is 13.8 billion years old, with an uncertainty ...

Few topics have been as contentious among both scientists and laypeople as the age of the Earth. Many scientists are people ...

We know that Earth is about 4.54 billion years old, but trying to piece together the very earliest stages of its evolution is ...

A new study has identified an exoplanet that is just 3 million years old — around 1,500 times younger than Earth — alongside a misaligned protoplanetary disk that researchers cannot explain.

The Earth and its moon are believed to have originated from similar materials: the resulting debris from a massive impact when one large object was struck by another, according to Nasa.