Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense

The asteroid, known as 2022 RD2, belongs to a rare class of space rocks called Arjunas. These objects travel around the sun on orbits that closely match Earth’s and sometimes drift near the planet at unusually low speeds. That sluggish pace can allow Earth’s gravity to trap them for a short time, creating what researchers call mini moons.

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals.

Dec. 4 full moon marks last supermoon of 2025. What we know about Cold Moon, including peak illumination and if it will be visible in Kentucky

The last supermoon of 2025 will rise in December, bringing with it brighter skies and a second round of king tides to the Oregon Coast.