Earth is expected to spin slightly faster on three specific days in July and August: July 9, July 22 and August 5. This could ...

A leap second is a one-second modification that is sometimes used with atomic clocks, whenever there is a change in Earth's ...

Since 2020, the Earth has been spinning faster – hence the uncertainty in the exact date of the shortest day in 2025.

Right now, Earth is about 3.1 million miles farther from the sun than it is in early January when it reaches perihelion, its ...