Have you ever thought of a moon having its own moon, revolving around it, instead of around the planet? Even if you haven’t, scientists do consider—and one of the titles for such bodies is absolutely terrific: “moonmoons.”
In an article on the pre-print service arXiv, the researchers from the Laboratoire d’Astrophysique de Bordeaux and the Carnegie Institution for Science talk about the subsistence of such objects. However, those researchers use the word “submoon,” while others have proposed the term “moonmoon,” as per Gizmodo.
Sean Raymond and Juna Kollmeier of Carnegie scripted that no “moonmoons’ exist in the solar system—as the bodies require to be in a very detailed position. Submoons (or Moonmoons) require being near enough to the moon to be driven by its gravity—although not so near that they are ragged to fragments by tidal forces.
Moreover, the moon that the moonmoon revolves around has to be comparatively distant from the planet—in order that the moonmoon is not ensnared by the planet itself. “Something has to thrust a rock into the orbit at the appropriate velocity that it would set into orbit around a moon and not the star or planet,” said Raymond.
The scientists state, “While several planet–moon systems are not vigorously capable of hosting long-lasting submoons, the nonappearance of submoons around acknowledged exomoons and moons where submoons can endure offers significant signs to the histories and formation processes of these systems. Further looking into the possible formation processes, lasting dynamical survival, and discovery of submoons is expectant.”
In another recent study, researchers have stated to have discovered proof of enormous, uneven “ice spikes,” around 50 ft tall, on the surface of Jupiter’s moon. They spikes would “create a threat to any prospect space mission alighting on the moon,” as per the research. The spikes can be like “penitentes” here down on Earth, similar to those observed in the higher altitudes of South America.