For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This coincided with the Late Heavy Bombardment (ca. 4.1 to 3.8 billion years ago), a ...

Imagine walking across your field, picking up rocks like you've done a thousand times before, when suddenly you're holding a ...

Earth is often described as a water world, but how that water arrived has never been settled. For years, the focus has rested ...

A close-up view of a portion of a "relatively fresh" crater, looking southeast, as photographed during the third Apollo 15 lunar surface ...

A new NASA study using Apollo lunar soil samples challenges a long-held theory. It suggests meteorites were not the primary ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...

The city’s architecture travels through time and continents, incorporating everything from slabs of the Italian Alps to meteorites that hit southern Africa 2bn years ago ...

For many years, planetary scientists have believed that water-rich meteorites arriving late in Earth's history (OK, the time ...

A long-standing idea in planetary science is that water-rich meteorites arriving late in Earth’s history could have delivered ...

High-precision oxygen isotopes in Apollo lunar soils reveal a persistent impactor fingerprint, showing that impacts contributed only a tiny fraction of ...

Trump's calls for a takeover of Greenland puts open scientific collaboration that is helping our understanding of the threat of global sea-level rise at risk.

Planetary scientists analyzing oxygen isotopes in lunar soil from the Apollo mission sites conclude that meteorite ...