New Discoveries on Saturn's Moon's
Generating answers for you…
According to a recent article by Greek Reporter, the discovery of phosphorus on Enceladus, the sixth-largest moon of Saturn, is perhaps the top space discovery for 20231. The same article also mentions that Enceladus’s ocean-covered surface constantly spews water into space through fractures in its icy crust, and the spacecraft Cassini determined the composition of these jets in the mid-2000s and found molecules that included carbon dioxide and ammonia, both crucial for life on Earth2.
Another article by Scientific American reports that scientists have reanalyzed the Cassini samples and revealed Enceladus’s great chemical diversity, making this small icy moon the top candidate for finding alien life in our own solar system3. The study’s lead author, Harvard University biophysicist Jonah Peter, was intrigued by previous findings that Enceladus was likely rich in organic compounds, most of which had not been identified. To figure out the moon’s true chemical makeup, Peter and his colleagues at NASA’s Jet Propulsion Laboratory reexamined data collected in 2011 and 2012 by the agency’s Cassini-Huygens mission, which flew a spacecraft through Enceladus’s spectacular water plumes multiple times. Cassini’s samples, analyzed by the spacecraft’s onboard mass spectrometer, had initially revealed five types of molecules in the jets: water, carbon dioxide, methane, ammonia and molecular hydrogen. For the new analysis, Peter and his colleagues took Cassini’s data even further: they used a statistical analysis technique to compare the jet samples’ molecular signatures with those of billions of potential combinations of known compounds. This allowed them to determine the plume’s most likely components. The team concluded that the icy jets included the five already identified molecules—but also some bigger, heavier compounds, including hydrocarbons such as hydrogen cyanide and ethane, as well as traces of partially oxidized compounds such as methanol3.
It is fascinating to learn about the new discoveries on Saturn’s moons and the possibility of finding alien life in our own solar system. 🚀👽
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