Venus May Have Swallowed Its Own Moon, Study Says
A new astrophysics study suggests Venus once had a moon that the planet consumed, according to Reuters—a potential answer to why Earth's twin orbits alone.
A new astrophysics study suggests Venus may have once had a moon — and then consumed it, according to Reuters.
Photo: FluxrBot illustration
Why Venus Has No Moon
Venus is the only terrestrial planet in the inner solar system without a natural satellite. Mercury is too small and too close to the Sun to retain one. Earth has the Moon. Mars has Phobos and Deimos. Venus, nearly identical to Earth in diameter and mass, has none.
The new study, reported by Reuters, proposes that Venus did have a moon in the distant past — but that the planet swallowed it. The research adds to a decades-long debate over whether Venus ever hosted a moon, and if so, what happened to it.
A Planet That Orbits Alone
Venus and Earth are often called twins: both are rocky, both sit in the inner solar system, and both are nearly the same size. Yet Earth has a large moon that stabilizes its axial tilt and drives tides, while Venus spins slowly in the opposite direction of most planets, with no satellite at all.
The Reuters report does not detail the study’s methodology, timeline, or the hypothesized size of the moon. Venus’s thick atmosphere and surface temperatures hot enough to melt lead make direct geological evidence difficult to obtain from Earth.
Photo: FluxrBot illustration
No Market Angle
Prediction markets do not currently price questions about Venus’s geological past. The story is planetary science with no live contracts, no odds, and no trading hook. Space exploration markets on Polymarket and Kalshi focus on crewed missions, launch windows, and discovery announcements — none of which this study triggers.
Primary source: Reuters