For billions of years, the Moon has been orbiting Earth. At an average distance of around 384,400 kilometres, it shapes life ...

A new image of an asteroid, referred to as a “quasi-moon,” has been released ...

China’s Tianwen-2 spacecraft is about to arrive at Kamoʻoalewa, Earth’s mysterious “mini-moon,” to collect samples that may reveal a lunar origin.

Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

Astronomers have a plan to observe an errant piece of a SpaceX rocket as it hits the moon to better understand impact events ...

When the Moon first formed, it was a sea of molten lava. The immense gravity of Earth stretched this molten sea, raising tides on both the near and far sides. But the Moon was spinning, and that ...