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== Teacher's Notes == | == Teacher's Notes == | ||
'''Session 3 | '''Session 3''' | ||
Having looked at the | Having looked at the Moon last session we turn our attention to the rest of the solar system – specifically focusing on the geology and evolution of these rocky bodies.<br /> | ||
* The voyager probes were the first close up look at the outer solar system – taking advantage of a rare “lining up” of the gas giants allowing one probe to flyby them all | * The voyager probes were the first close up look at the outer solar system – taking advantage of a rare “lining up” of the gas giants allowing one probe to flyby them all: video – The story of Voyager 2.<br /> | ||
:- http://www.nasa.gov/mission_pages/voyager/index.html<br /> | :- http://www.nasa.gov/mission_pages/voyager/index.html<br /> | ||
:- http://en.wikipedia.org/wiki/Voyager_2<br /> | :- http://en.wikipedia.org/wiki/Voyager_2<br /> | ||
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:- Manicouagan is clearly visible to astronauts<br /> | :- Manicouagan is clearly visible to astronauts<br /> | ||
:- http://earthobservatory.nasa.gov/IOTD/view.php?id=3325<br /> | :- http://earthobservatory.nasa.gov/IOTD/view.php?id=3325<br /> | ||
* The | * The Moon also has many craters – although lava flows in the “seas” have covered over many of them.<br /> | ||
:- Image taken by Apollo 8<br /> | :- Image taken by Apollo 8<br /> | ||
:- Dating surfaces possible by looking at crater counts. No craters = young surface<br /> | :- Dating surfaces possible by looking at crater counts. No craters = young surface<br /> | ||
* Tycho crater can be seen unaided from the earth. The lines of ejecta cover ¼ of the near side of the | * Tycho crater can be seen unaided from the earth. The lines of ejecta cover <big>¼</big> of the near side of the Moon.<br /> | ||
:- Craters can be dated by the layering of the ejecta’s over older craters.<br /> | :- Craters can be dated by the layering of the ejecta’s over older craters.<br /> | ||
:- Possible that the asteroid that formed tycho was linked to the asteroid that caused the K-T boundary extinction.<br /> | :- Possible that the asteroid that formed tycho was linked to the asteroid that caused the K-T boundary extinction.<br /> | ||
