A new study proposes that Venus may once have had a moon that eventually fell into the planet, according to reporting by futurism.com. The research suggests the moon was lost through orbital decay, a process in which its orbit gradually shrank until it ended in a crash. WIRED and AOL.com also covered the findings, and Ynetnews framed the idea as a possible answer to a mystery about Venus.
The work is presented as a theory rather than a confirmed event. According to ecoportal.net, the proposal centers on the mechanics of orbital decay as the path by which a former Venusian moon could have been destroyed. The reports do not describe the size of the proposed moon, when the collision might have occurred, or the specific observations that prompted the hypothesis.
Venus is often compared with Earth, and the question of why the two planets diverged so sharply has drawn attention for decades. The moon-loss idea is being offered as one possible piece of that larger puzzle, though the coverage available does not detail how it would fit with other explanations.
What to watch next: whether the researchers publish the full study and whether other scientists test the orbital decay scenario against existing data on Venus.
