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October 31, 2009 01:08 PM
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Yes, there is.
-quote-
" Recent Galileo data shows there is some internal heating emanating from Europa. With this heat as an energy source, the prospect of life becomes exciting. Such heating can be attributed to several sources, such as the normal decay of radioactive material; however, the majority of heating is thought to occur from tidal flexing as a result of Jupiter’s enormous gravity pull (Beatty, et. al., pg 254). Using the moon Io as a model, we see prominent volcanism as a result of this tidal energy from Jupiter (Beatty, et. al., pg 245). The same effects of tidal flexing may also cause volcanism on Europa, called cryo-volcanism (Beatty, et. al, pg 254). The friction heat caused by this flexing will also allow the water to remain liquid under the icy surface. The smooth surface and the presence of bulging and fractures point to some active geology that could indicate cryo-volcanism. Further evidence of cryo-vulcanism is present in the form of localized bulging, triple fracture bands and resurfacing (Beatty, et. al., pg 260, 261). Reddish material seen in photography from Galileo could indicate material from the mantle being stirred up in the presumed liquid ocean by the active geology. With a water-ice surface and the presence of a heat source, a liquid ocean almost seems very likely. Knowing that organic life can exist in some extreme environments and knowing that volcanism can release carbon material make the prospect of life on Europa more likely. Even more remarkable is the discovery of a tenuous oxygen atmosphere. This data provided by the Hubble Space Telescope (http://jpl.nasa.gov/galileo/europa/hst.htm) could be the result of liberated oxygen from the magnetosphere of Jupiter; however this new information is added to the list of questions to be answered by further exploration. With the Europa Orbiter scheduled to arrive in the year 2008 (http://www.jpl.nasa.gov/europaorbiter/EO_info.htm), our answers to the presence of liquid water and geological activity will be revealed. It is clear that given the questions of life Europa, further exploration is necessary. "
-end of quote-
Source(s):
http://astronomyonline.org/Astrobiology/LifeOnEuropa.asp
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Yes it does have an internal heat source.
----quote----
Subsurface ocean
Most planetary scientists believe that a layer of liquid water exists beneath Europa's surface, kept warm by tidally generated heat.36 The heating by radioactive decay, which is almost the same as in Earth (per kg of rock), cannot provide necessary heating in Europa, because the volume-to-surface ratio is much lower due to the moon's smaller size.
----quote----
information quoted from http://en.wikipedia.org/wiki/Europa_%28moon%29
What is allowing Europa to have water instead of solid ice?
Tidal heating allows Europa to have water instead of solid ice.
"layer of liquid water exists beneath Europa's surface, kept warm by tidally generated heat.36 The heating by radioactive decay,"
Is there a resonance between other moons that is generating heat?
I would say theories are use to explain the why heat is generated on the moon. It is not a fact.
----quote----
The first hints of a subsurface ocean came from theoretical considerations of tidal heating (a consequence of Europa's slightly eccentric orbit and orbital resonance with the other Galilean moons).
----quote----
information obtain from http://en.wikipedia.org/wiki/Europa_%28moon%29
----quote----
In late 2008, it was suggested Jupiter may keep Europa's oceans warm by generating large planetary tidal waves on the moon because of its small but non-zero obliquity. This previously unconsidered kind of tidal force generates so-called Rossby waves that travel quite slowly, at just a few kilometers per day, but can generate significant kinetic energy. For the current axial tilt estimate of 0.1 degree, the resonance from Rossby waves would store 7.3 × 1017 J of kinetic energy, which is two hundred times larger than that of the flow excited by the dominant tidal forces.3940 Dissipation of this energy could be the principal heat source of Europa's ocean.
----quote----
information obtain from http://en.wikipedia.org/wiki/Europa_%28moon%29
Is there an internal form of heat produced by the moon?
No. The heat produce is cause by external forces.
Source(s):
http://en.wikipedia.org/wiki/Europa_%28moon%29
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Answered Question
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Does Europa have a internal heat source?
What is allowing Europa to have water instead of solid ice?
Is there a resonance between other moons that is generating heat?
Is there an internal form of heat produced by the moon?
Is there a resonance between other moons that is generating heat?
Is there an internal form of heat produced by the moon?
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Best Answer Chosen by Asker
| November 01, 2009 03:31 AM |
-quote-
" Recent Galileo data shows there is some internal heating emanating from Europa. With this heat as an energy source, the prospect of life becomes exciting. Such heating can be attributed to several sources, such as the normal decay of radioactive material; however, the majority of heating is thought to occur from tidal flexing as a result of Jupiter’s enormous gravity pull (Beatty, et. al., pg 254). Using the moon Io as a model, we see prominent volcanism as a result of this tidal energy from Jupiter (Beatty, et. al., pg 245). The same effects of tidal flexing may also cause volcanism on Europa, called cryo-volcanism (Beatty, et. al, pg 254). The friction heat caused by this flexing will also allow the water to remain liquid under the icy surface. The smooth surface and the presence of bulging and fractures point to some active geology that could indicate cryo-volcanism. Further evidence of cryo-vulcanism is present in the form of localized bulging, triple fracture bands and resurfacing (Beatty, et. al., pg 260, 261). Reddish material seen in photography from Galileo could indicate material from the mantle being stirred up in the presumed liquid ocean by the active geology. With a water-ice surface and the presence of a heat source, a liquid ocean almost seems very likely. Knowing that organic life can exist in some extreme environments and knowing that volcanism can release carbon material make the prospect of life on Europa more likely. Even more remarkable is the discovery of a tenuous oxygen atmosphere. This data provided by the Hubble Space Telescope (http://jpl.nasa.gov/galileo/europa/hst.htm) could be the result of liberated oxygen from the magnetosphere of Jupiter; however this new information is added to the list of questions to be answered by further exploration. With the Europa Orbiter scheduled to arrive in the year 2008 (http://www.jpl.nasa.gov/europaorbiter/EO_info.htm), our answers to the presence of liquid water and geological activity will be revealed. It is clear that given the questions of life Europa, further exploration is necessary. "
-end of quote-
Source(s):
http://astronomyonline.org/Astrobiology/LifeOnEuropa.asp
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Other Answers (1)
October 31, 2009 11:09 PM
Does Europa have a internal heat source? Yes it does have an internal heat source.
----quote----
Subsurface ocean
Most planetary scientists believe that a layer of liquid water exists beneath Europa's surface, kept warm by tidally generated heat.36 The heating by radioactive decay, which is almost the same as in Earth (per kg of rock), cannot provide necessary heating in Europa, because the volume-to-surface ratio is much lower due to the moon's smaller size.
----quote----
information quoted from http://en.wikipedia.org/wiki/Europa_%28moon%29
What is allowing Europa to have water instead of solid ice?
Tidal heating allows Europa to have water instead of solid ice.
"layer of liquid water exists beneath Europa's surface, kept warm by tidally generated heat.36 The heating by radioactive decay,"
Is there a resonance between other moons that is generating heat?
I would say theories are use to explain the why heat is generated on the moon. It is not a fact.
----quote----
The first hints of a subsurface ocean came from theoretical considerations of tidal heating (a consequence of Europa's slightly eccentric orbit and orbital resonance with the other Galilean moons).
----quote----
information obtain from http://en.wikipedia.org/wiki/Europa_%28moon%29
----quote----
In late 2008, it was suggested Jupiter may keep Europa's oceans warm by generating large planetary tidal waves on the moon because of its small but non-zero obliquity. This previously unconsidered kind of tidal force generates so-called Rossby waves that travel quite slowly, at just a few kilometers per day, but can generate significant kinetic energy. For the current axial tilt estimate of 0.1 degree, the resonance from Rossby waves would store 7.3 × 1017 J of kinetic energy, which is two hundred times larger than that of the flow excited by the dominant tidal forces.3940 Dissipation of this energy could be the principal heat source of Europa's ocean.
----quote----
information obtain from http://en.wikipedia.org/wiki/Europa_%28moon%29
Is there an internal form of heat produced by the moon?
No. The heat produce is cause by external forces.
Source(s):
http://en.wikipedia.org/wiki/Europa_%28moon%29
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