The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond ...

The component of the total angular momentum for the Earth-Moon system that is perpendicular to the Earth's orbital plane (Lz) is conserved throughout the system's history, except during intervals ...

This impact set the angular momentum for the Earth-moon system, and gave the early Earth a five-hour day. Over millennia, the moon has receded from the Earth and the rotation has slowed to our current ...

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

Using numerical modelling, we show that the solar perturbations on the Moon’s orbit naturally induce a large lunar inclination and remove angular momentum from the Earth–Moon system.

First, since the mass and angular momentum of the present Earth–Moon system provide constraints on the sum of multiple impacts, rather than a single impact, the additional freedom in impact ...

Since the mystery push was pointed through the center of mass of the Earth-moon system, it didn’t change the angular momentum of the system. Angular momentum is a measure of rotational motion ...

Related: All of these forces work to sling the moon farther away from Earth. "Since the Earth and the moon are part of the same gravitationally interacting system, total angular momentum must be ...

This impact set the angular momentum for the Earth-moon system, and gave the early Earth a five-hour day. Over millennia, the moon has receded from the Earth and the rotation has slowed to our current ...

Let’s first look at why the Moon is moving away from us. It boils down to one of Newton’s laws: conservation of angular momentum. As the Moon’s gravity pulls on Earth, it produces tidal ...

The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the solar system was just getting started, a Mars-size protoplanet named Theia ...