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

For the Moon itself, the story is different. The Moon has far less water than Earth, but for such a dry world it’s important.

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

Planetary scientists analyzing oxygen isotopes in lunar soil from the Apollo mission sites conclude that meteorite bombardment over 4 billion years could only have delivered a tiny fraction of Earth’s ...

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 ...

A new NASA study of its Apollo lunar soils clarifies the Moon’s record of meteorite impacts and timing of water delivery.

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

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

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 ...

A long-standing idea in planetary science is that water-rich meteorites arriving late in Earth's history could have delivered a major share of Earth's water. A new study by Universities Space Research ...