They were dug out by debris sent violently aloft when an asteroid or comet struck the lunar surface 3.8 billion years ago.

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

Using energy greater than the global nuclear weapons inventory, an impact event carved two grand canyons into the moon’s ...

Research analyzing molybdenum isotopes in meteorites and Earth rocks shows our planet received its water later than ...

On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from ...

The finding, reported in the science journal Geochimica et Cosmochimica Acta, is significant because the data reported by the ...

When NASA launched a spacecraft to an asteroid, scientists patiently waited for their chance to look at bits of the space ...

WASP-121b is like nothing in the solar system, raining liquid metal and being puffy like a marshmallow. The origins of these ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a ...