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All things Pluto

Started by Joan Denoo. Last reply by Gerald Payne Sep 17. 2 Replies

The Five Planets in the Sky.

Started by Visvakarman Svetasvatara-Upanish Jun 17. 0 Replies

From movie graphics to scientific tool

Started by Ruth Anthony-Gardner. Last reply by Joan Denoo Mar 26. 3 Replies

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Comment by AtheistTech on February 21, 2012 at 5:55pm
Comment by Steph S. on February 6, 2012 at 9:16pm

Comment by The Big Blue Frog on January 26, 2012 at 9:25am

If that's a current photo, then we have to realize that it's winter in the northern hemisphere. That explains the brown. Notice that the Southeast, where there are more evergreens, is still fairly green.

Comment by Sandi on January 26, 2012 at 8:42am

Our big blue marble:

How brown the land is. What happened to all the green?

Comment by George on December 2, 2011 at 3:14pm

Wikipedia: December 2011 lunar eclipse

Not sure how much of the eclipse will be visible on the East coast

Comment by AtheistTech on December 2, 2011 at 2:18pm

Super-sized Lunar Eclipse Saturday 12-10-2011

Get the details beloiw:

Comment by AtheistTech on October 22, 2011 at 2:44am
@George - Orbital planes have to do with the gravitational collapse of a cloud (nebula). The collapse causes a spin, but there is nothing specific that controls in what direction the spin will occur. I believe it is random.
Comment by George on October 21, 2011 at 11:43pm

@Cane - Obital planes are almost always going to be tilted related to other orbital planes because it is unlikely for them to align exactly.  Just like the axis of the earth's spin is tilted with respect to the earth's orbit around the Sun.

Wikipedia - article celestial coordinate systems

Comment by AtheistTech on October 20, 2011 at 6:44pm
Thanks Rich. Would you offer a reason or two why you believe that?
Comment by Richard Lawrence on October 20, 2011 at 6:42pm
I believe that the ecliptic and the plane of the galaxy are not the same.

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