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Tidal Heating of Moons. http://nssdc.gsfc.nasa.gov/image/planetary/comet/sl9pre_hst.jpg. [email protected] http://astronomy.nmsu.edu. http://photojournal.jpl.nasa.gov/catalog/PIA11688. http://www.nasa.gov/multimedia/imagegallery /image_feature_758.html. Tides on Earth.

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Tidal heating of moons

Tidal Heating of Moons

http://nssdc.gsfc.nasa.gov/image/planetary/comet/sl9pre_hst.jpg

[email protected]

http://astronomy.nmsu.edu

http://photojournal.jpl.nasa.gov/catalog/PIA11688

http://www.nasa.gov/multimedia/imagegallery

/image_feature_758.html


Tides on earth
Tides on Earth

http://www.universetoday.com/20489/moon-compared-to-earth/


Tides on earth1
Tides on Earth

http://www.universetoday.com/20489/moon-compared-to-earth/


Tides on earth2
Tides on Earth

http://www.universetoday.com/20489/moon-compared-to-earth/


Tides on earth3
Tides on Earth

http://www.ps.missouri.edu/rickspage/Moon/Tides.html


Moons in the solar system
Moons in the Solar System

Mars’

Saturn’s

Neptune’s

Pluto’s

Earth’s

Jupiter’s

Uranus’

http://en.wikipedia.org/wiki/File:Moons_of_solar_system_v7.jpg


Moons in the solar system1
Moons in the Solar System

Mars’

Saturn’s

Neptune’s

Pluto’s

Earth’s

Jupiter’s

Uranus’

http://en.wikipedia.org/wiki/File:Moons_of_solar_system_v7.jpg


Jupiter s moon io
Jupiter’s Moon Io

http://science.nasa.gov/science-news/science-at-nasa/2001/ast16oct_1/

http://en.wikipedia.org/wiki/File:Iosurface_gal.jpg


Jupiter s moon io1
Jupiter’s Moon Io

http://www.nasa.gov/multimedia/imagegallery/image_feature_758.html

http://science.nasa.gov/science-news/science-at-nasa/2007/09mar_alienvolcano/

http://apod.nasa.gov/apod/ap000606.html


Jupiter s moon europa
Jupiter’s Moon Europa

http://www.nasa.gov/multimedia/imagegallery/image_feature_1339.html


Europa s cracked icy surface
Europa’s Cracked Icy Surface

http://apod.nasa.gov/apod/ap960814.html

http://www.sciencedaily.com/releases/2011/01/110126131538.htm

Europa

Earth (Greenland)


Saturn s moon enceladus
Saturn’s Moon Enceladus

http://www.newscientist.com/gallery/2009june22-week-in-space


Enceladus briny geysers
Enceladus’ Briny Geysers

http://apod.nasa.gov/apod/ap071013.html

http://apod.nasa.gov/apod/ap080331.html


Neptune s moon triton
Neptune’s Moon Triton

http://commons.wikimedia.org/wiki/File:Triton_(moon).jpg



Tidal heating activity1
Tidal Heating Activity

  • Stretching elastic bands!

  • Changing stretching = friction = heat

  • Gravity stretches Moons = tidal force

  • Changing tidal forces also cause heat

  • Certain arrangements result in lots of stretching


The rings of saturn
The Rings of Saturn

http://apod.nasa.gov/apod/ap061016.html


The rings of saturn1
The Rings of Saturn

http://saturn.jpl.nasa.gov/photos/imagedetails/index.cfm?imageId=2794


The rings of saturn2
The Rings of Saturn

http://photojournal.jpl.nasa.gov/catalog/PIA03550

Enceladus &

the E ring!

http://apod.nasa.gov/apod/ap070327.html


Summary
Summary

  • Some moons are far from the Sun but are heated somehow

  • Gravity stretches moons = tidal force

  • Changing tidal forces provides heat by friction

  • Heated moons can have volcanoes, geysers, and oceans!

    • Tidal heating means water can be a liquid even in places far from the Sun.Where there’s water, there might be life!Follow the water!


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