Two Astronauts in Space sochi winter olympics launch with space flown torch Space Astronauts Two in

Two Astronauts in Space sochi winter olympics launch with space flown torch Space Astronauts Two in

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Therefore, the results of the new study support the idea that primitive life could potentially have evolved on Ganymede. This is because places where water and rock interact are important for the development of life. For example, some theories suggest that life arose on our planet within hot, bubbling seafloor vents. Before the new study, Ganymede's rocky seafloor was believed to be coated with ice--not liquid. This would have presented a problem for the evolution of living tidbits. The "Dagwood sandwich" findings, however, indicate something else entirely--the first layer on top of Ganymede's rocky core might be made up of precious, life-sustaining salty water.



Dr. Soderblom calculated the gravity signatures both in and around 1,200 craters that had been excavated by impacting objects on the lunar far side. He then went on to compare the gravity within each crater with the gravity of the surrounding terrain. Dr. Soderblom did this in order to determine whether an impact increased or decreased the local porosity.



Ganymede is the largest moon in our Solar System. Indeed, its impressive diameter of nearly 3,280 miles makes it almost as big as Mars! Astronomers have known since the 1990s that this frigidly cold moon, that circles around the gas-giant planet Jupiter, contains a hidden salty subsurface ocean of liquid water, sloshing around deep beneath its secretive shell of ice. However, in May 2014, planetary scientists announced that the situation may be somewhat more complicated--Ganymede's ocean might be organized like a multi-tiered sandwich, with ice and oceans stacked up in several layers, according to new NASA-funded research that models this enormous moon's composition.