After a few years of speeding up, our planet now appears to be slowing down. For the first time in seven years, the average length of day became longer in 2023. Meanwhile, new predictions suggest ...

You may need binoculars or a telescope for this one. It includes the three furthest planets in our solar system.

Moon – A large object orbiting a planet. Orbit – the path an object takes round another object. Day – the length of time a planet takes to complete one spin. Year – the length of time a ...

The length of a day on earth is increasing slowly but gradually ... provide a powerful tool for evaluating the history of our planet, and the solar system. They are like signposts on a trail ...