Alien life could be hiding deep inside Saturn's 'Death Star' moon | 0JWO5ZO | 2024-02-08 11:08:01
An ocean may be hiding beneath the icy cratered floor of Saturn's 'Death Star' moon, making it 'a chief candidate' for alien life, scientists have stated.
Astronomers consider liquid water shaped on Mimas – the planet's smallest and innermost moon – somewhere between 5 to 15 million years in the past, making it much younger than Earth's oceans, which are considered greater than 4 billion years previous.
Mimas is usually compared to the Demise Star from Star Wars because of its giant Herschel Crater, which resembles the hollowed-out form of the fictional area station's laser weapon.
But with no signs of any activity, this small moon – around just 400 kilometres in diameter – would have been the last place anticipated to be hiding a worldwide ocean beneath its surface.
Nevertheless, the researchers stated that opposite to all expectations, Mimas seems to have an ocean just 12 to 18 miles under its icy outer shell.
It joins a household of moons believed to have oceans beneath their surfaces – Jupiter's Europa and Ganymede, and Saturn's Titan and Enceladus.
Dr Nick Cooper, honorary analysis fellow at Queen Mary College of London, stated: 'Mimas is a small moon, only about 400 kilometres in diameter, and its closely cratered surface gave no hint of the hidden ocean beneath.
'This discovery provides Mimas to an exclusive membership of moons with inner oceans, together with Enceladus and Europa, however with a singular distinction – its ocean is remarkably younger, estimated to be solely 5 to 15 million years previous.'
He added: 'The existence of a lately shaped liquid water ocean makes Mimas a chief candidate for research, for researchers investigating the origin of life.'
For the research, published in the journal Nature, a workforce led by Dr Valery Lainey of the Paris Observatory in France, analysed knowledge from Nasa's Cassini spacecraft.
Cassini studied Saturn and its moons for more than a decade earlier than crashing into the planet in 2017.
By intently analyzing the delicate modifications in Mimas's orbit, the researchers stated they have been capable of recommend the presence of a hidden ocean and estimate its measurement and depth.
The researchers stated these findings have also allowed them to rule out the potential of a rocky core inside Mimas, saying the existence of worldwide inner oceans 'is the one state of affairs suitable with observations'.
The group stated their discovery suggests that even small and seemingly inactive moons can harbour hidden oceans able to supporting circumstances essential to the formation of life.
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