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Discussion Forum

Martian atmosphere explodes from comet tail debris

Started by Ruth Anthony-Gardner. Last reply by Sean Young 4 hours ago. 2 Replies

MOND trumps Dark Matter

Started by Ruth Anthony-Gardner Aug 28, 2013. 0 Replies

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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 A Former Member on October 25, 2011 at 4:39pm
Thanks for the info Cane. I posted the sun pics. I didn't realize their was an astronomy group. I've posted lots of space-related posts over in the Science group, if anyone is interested.
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.
Comment by AtheistTech on October 20, 2011 at 6:18pm
Has anyone else thought about the orientation of the Milky Way in the sky and how it relates to the orbital plane of the Earth? I wonder if it is common to have an orbital plane that does not match the Milky Way orbital plane?
Comment by AtheistTech on September 28, 2011 at 11:19pm

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