Fact check
“Venus has no moon.”
Reasoning
All provided excerpts from WIRED and UC Riverside news articles describe Venus as lacking a natural satellite and discuss theories explaining this absence. No source contradicts the claim.
On confidence: High confidence due to consistent statements across independent primary sources.
Important context
The sources focus on explaining why Venus has no moon, not on presenting any evidence of an existing moon.
Evidence
Supporting (8)
- Tier 1 — Primary sourceVenus May Have Devoured Its Moon | WIRED
Ritsuko Kawai Science Sep 24, 2026 5:15 AM Venus May Have Devoured Its Moon One of the great mysteries in astronomy has been why Venus has no moon. Now a new theory provides a simple answer: It might have been eaten. Photograph:…
- Tier 1 — Primary sourceVenus May Have Devoured Its Moon | WIRED
have lost its satellite. One previously presented hypothesis is that Venus’ moon was destroyed by a collision with some massive celestial body. But a recent study by researchers at the University of California, Riverside, suggests a…
- Tier 1 — Primary sourceVenus May Have Devoured Its Moon | WIRED
The time it takes for Venus to complete one rotation is 243 Earth days. That’s longer than Venus’ year and makes the bright planet the slowest spinner in our solar system. This protracted rotation, combined with the planet’s gravity, means…
- Tier 1 — Primary sourceVenus May Have Devoured Its Moon | WIRED
several factors including the time it takes Venus to complete one rotation and the mass of a hypothetical moon, ranging anywhere from 0.01 to 10 times that of Earth’s natural satellite. The outcomes showed that the moon’s fate depended on…
- Tier 1 — Primary sourceVenus ate its moon | UCR News | UC Riverside
Scientists have long speculated why Venus, with a similar size, mass, and structure to Earth, doesn’t have a moon. New UC Riverside research shows it’s because our hungry twin likely swallowed it. Illustration depicts active volcanism in…
- Tier 1 — Primary sourceVenus ate its moon | UCR News | UC Riverside
Journal, shows that neither theory fits. “My study shows Venus didn’t require a catastrophe to arrive at what we can see today,” said UCR astrophysicist and lead author Stephen Kane. “It turns out the gravity of the planet itself combined…
- Tier 1 — Primary sourceVenus ate its moon | UCR News | UC Riverside
is happening because Earth spins at a relatively fast 24 hours per rotation. The energy from this spinning gets transferred to the moon, causing it to distance itself. Venus has the exact opposite situation. It takes that planet 243 Earth…
- Tier 1 — Primary source金星が衛星を“飲み込んで”いた可能性が浮上 | WIRED.jp
Ritsuko Kawai Science 2026.09.23 金星に月がない理由に新説、かつて衛星を“飲み込んで”いた可能性が浮上 地球とよく似た質量と大きさをもつ金星がなぜ月をもたないのかは、天文学における大きな謎のひとつだった。その回答になりうる説が、このほど発表された。それは金星が自分の衛星を“飲み込んで”いたというものだ。 Photograph: NASA/APL/NRL 地球…
Limitations
The evidence consists solely of recent news articles; no direct observational data is cited, but the consensus in these reputable sources is clear.
- Last verified:
- Sep 27, 2026, 4:32 AM CDT
- Pipeline:
- 2.1.0
- Claim type:
- Factual
Where this claim appeared
Venus May Have Devoured Its MoonWired · Ritsuko Kawai