When NASA’s Cassini probe sent the first images of the water vapor jet That world was not dead. It was on, and the content of an underground ocean was expelling to space. Since then, Each new satellite data He has reinforced an idea that excites astrobiologists: if there is a place beyond the earth where to look for life, it is there.
Short. A new Cassini data analysis, collected almost twenty years ago, has reinforced the possibility of Encelado to meet all the conditions to house life. The European space agency is clear: Encell is already a central objective of its long -term exploration plan, and it is time to launch a mission to answer the big question at once.
The ingredients for life. For life to exist as we know it, three things are needed: liquid water, energy and several basic chemical elements: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur. Once all seems to have them.
We know that a global saltwater ocean is hidden under its icy cortex. The energy is provided by the friction of the tides that Saturn causes and, probably, Hydrothermal sources in the seabedsimilar to fumaroles that here are full of bacteria and more complex organisms, such as worms and snails.
Promising news. Thanks to the brain speakers, who launch samples to space, Cassini was able to analyze the composition of their ocean. Although most of the essential elements had already been detected, including phosphorus, a new finding between probe data has re -raised enthusiasm.
A study published in Nature Astronomy Analyzes a Cassini flight from 2008. The ship crossed the brain feathers at 18 km/s. That speed, which seemed like a problem, turned out to be useful: the impact broke the molecules in a way that allowed them to identify them better. The result has been the discovery of new complex organic molecules, such as aliphatic compounds, esters, ethers and other molecules with nitrogen and oxygen. On Earth, these molecules are linked to reactions that give rise to amino acids, the basic pieces of proteins.
ESA plans. With such promising scenario, Europe does not want to be left behind. In his scientific road map Voyage 2050, Encesto is already the star destination for a future mission. The idea includes an orbiter and a landing module.
The orbiter would fly over the brain feathers several times with more precise instruments than Cassini. The landing would pose near the “stripes of Tigre” of the South Pole, where the geysers emerge, to directly collect the newly fallen snow. It would be the first time that a probe analyzes a world with an active ocean, although it would not reach the surface until 2058.
Europe is not alone in the race. The United States also has its proposal: the mission Alcamadus orbilandermarked as a maximum priority in the Survey decadal of 2023. Your plan is very similar: orbit first and then land. China, meanwhile, already works in nuclear technology for deep space probes and Enced is among its future goals.
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