Scientists have discovered that the formation of oceans beneath icy moons could cause water to boil due to low pressure.
Researchers used computer models to simulate the effects of ocean melting on small, icy moons like Enceladus and Mimas. They found that in these moons, the interior can shrink as it melts, creating a low-pressure area under the ice shell. This low pressure is enough to cause boiling water at temperatures just above freezing point.
The study's authors warn that we don't know what happens to the gases released from the melting ocean yet, but they suggest it could lead to new fractures and features on the surface of these moons.
To determine which moons can boil their oceans, scientists used a general model of an ice-covered ocean. They found that only three of the moons examined would experience boiling: Enceladus, Mimas, and Miranda, which orbits Uranus.
Boiling occurs when pressure becomes too low to support liquid water, but not so low that it vaporizes completely. The researchers say that if a moon is small enough, its gravitational pull won't be strong enough to hold the ice shell together, resulting in boiling oceans.
This new discovery could provide insights into the geological history and behavior of icy moons like Enceladus and Mimas, which scientists believe have oceans beneath their icy surfaces.
Researchers used computer models to simulate the effects of ocean melting on small, icy moons like Enceladus and Mimas. They found that in these moons, the interior can shrink as it melts, creating a low-pressure area under the ice shell. This low pressure is enough to cause boiling water at temperatures just above freezing point.
The study's authors warn that we don't know what happens to the gases released from the melting ocean yet, but they suggest it could lead to new fractures and features on the surface of these moons.
To determine which moons can boil their oceans, scientists used a general model of an ice-covered ocean. They found that only three of the moons examined would experience boiling: Enceladus, Mimas, and Miranda, which orbits Uranus.
Boiling occurs when pressure becomes too low to support liquid water, but not so low that it vaporizes completely. The researchers say that if a moon is small enough, its gravitational pull won't be strong enough to hold the ice shell together, resulting in boiling oceans.
This new discovery could provide insights into the geological history and behavior of icy moons like Enceladus and Mimas, which scientists believe have oceans beneath their icy surfaces.