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

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

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

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 ...

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

Looking for the world's best places to travel in 2026? Here, travel experts share their picks for the top travel destinations ...

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

Clues buried in Moon dust are helping scientists revisit one of the oldest questions: where did Earth’s water come from? For ...

This year’s Australia Day Honours celebrates the contributions of several big public service names, including former ...

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.

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

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 ...