The Moon is not a fixed lantern in the sky but a slow-moving partner that is gradually edging away from Earth. That retreat ...

Explains how Earths day length could extend to 25 hours over hundreds of millions of years due to lunar tides, and how this ...

Earth’s rotation is slowing, lengthening days by milliseconds due to the Moon and climate change. A 25-hour day is millions of years away. Learn more.

The moon was formed 4.5 billion years ago in a "giant impact" that left Earth with a two-hour day, according to new research. Scientists have long debated the circumstances which led to the formation ...

A billion years ago, days lasted 19 hours: the balance between the oceans, the atmosphere, and the Moon slowed down the Earth ...

Our 24-hour day measures Earth’s rotation relative to the Sun, known as a solar day. This is slightly longer than Earth’s ...

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years. By Robin George Andrews The Earth stands alone in the solar system as a habitable world, as ...

A strange shift in Earth's rotation is making our days milliseconds shorter — and scientists are racing to understand why. When you purchase through links on our site, we may earn an affiliate ...