Parts of Enceladus show craters up to 22 miles (35 kilometers) in diameter, while other regions have few craters, indicating major resurfacing events in the geologically recent past. Europa: A World of Ice, With Potential for Life [30], Cassini performed chemical analysis of Enceladus's plumes, finding evidence for hydrothermal activity,[31][32] possibly driving complex chemistry. [25] In 2014, NASA reported that Cassini had found evidence for a large south polar subsurface ocean of liquid water with a thickness of around 10km (6mi). Thanks to the larger asteroid's weak gravity, Dactyl is unlikely to be . Organic compounds have been found on Saturn's moon Enceladus [31] It has been speculated that such activity could be a potential oasis of habitability. The plumes are about four times brighter when Enceladus is at apoapsis (the point in its orbit most distant from Saturn) than when it is at periapsis. [6][123] Most scientists think the observed heat flux of Enceladus is not enough to maintain the subsurface ocean, and therefore any subsurface ocean must be a remnant of a period of higher eccentricity and tidal heating, or the heat is produced through another mechanism. (Remember Enceladus, just much smaller). Enceladus's gravity (-150 degrees C): 49.08; Atmosphere stability for water molecules: Earth's gravity (15 degrees C): 7.320; . Called Ganymede, it has a diameter of 3,275 miles (5,270 kilometers). If a human were to attempt to stand on Jupiter, they would experience more than 2. [143] [29], These geyser observations, along with the finding of escaping internal heat and very few (if any) impact craters in the south polar region, show that Enceladus is currently geologically active. Enceladus is the sixth-largest moon of Saturn (19th largest in the Solar System).It is about 500 kilometers (310 miles) in diameter, about a tenth of that of Saturn's largest moon, Titan.Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System. The mission revealed a planet so phenomenal scientists had to go back. Such features are geologically young, because they cut across other tectonic features and have sharp topographic relief with prominent outcrops along the cliff faces. However, some linear grooves have been softened like the craters nearby, suggesting that they are older. Compare that to Earth's moon that is over 670 miles (1,079 kilometers) and we're talking a pretty tiny moon. This resonance maintains Enceladus's orbital eccentricity (0.0047), which is known as a forced eccentricity. But with a mass of 1.08 1020 kg, it is only 0.000018 as massive. enceladus gravity compared to earth - fiacpetvet.com If Ganymede formed in orbit around the Sun rather than Jupiter, it would likely be defined as a planet. The Next Full Moon is the Wolf Moon, Ice Moon, the Moon after Yule, and the Old Moon. Geophysical models indicate that tidal heating is a main heat source, perhaps aided by radioactive decay and some heat-producing chemical reactions.
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