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As the second planet from the Sun, Venus is one of the brightest celestial bodies visible from Earth and the closest major planet to our home world. While its mass and size make it a near twin of Earth, Venus is unique in that it carries no natural satellites.
Instead of a traditional moon, Venus hosts a quasi‑satellite—an asteroid that shares its orbital path around the Sun. Unlike a moon that remains bound to its planet, the quasi‑satellite stays in a co‑orbit, its trajectory shaped by Venus’s gravity but ultimately governed by the Sun.
In 2002, research scientist Brian Skiff at the Lowell Observatory Near‑Earth‑Object Search in Arizona identified the asteroid now known as Zoozve (designation 2002VE68). Estimates based on its brightness suggest a diameter between 660 feet and 1,640 feet.
Zoozve’s orbit is elongated and highly unstable. Venus’s gravitational pull keeps it close, but the combined influences of other solar system bodies will likely push the asteroid away in roughly 500 years, at which point it will lose its quasi‑satellite status.
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The prevailing hypothesis, supported by models published in 2006, proposes that Venus once possessed a moon. Early in its history, a massive impact delivered enough debris to form a satellite. Approximately ten million years later, a second, more powerful collision altered Venus’s rotation axis and spin rate. The resulting tidal forces drew the moon inward, culminating in a collision that merged the two bodies. This catastrophic event explains why Venus today rotates slowly and in a retrograde direction.
Mercury also lacks moons, but its proximity to the Sun weakens its gravitational field, preventing it from capturing and retaining satellites. Venus’s greater distance and comparable mass would, under different circumstances, allow it to hold a moon—an opportunity that was ultimately erased by violent early impacts.
