What is the only natural satellite of Earth?
Asked by jackie - 2 answers - May 02, 2013
What is threat of global warning
Asked by velan - 2 answers - Apr 12, 2013
Why does the sun rise earlier in Colorado than in Georgia
Asked by vgenschorc - 2 answers - Apr 11, 2013
How far away, in kilometres, is the sun from the earth?
Asked by FaerieLand - 1 answer - Mar 10, 2013
Is space center any good
Asked by babe - 0 answer - Mar 08, 2013
Wat we verstaan onder kosmische afstanden.
Asked by vascobanor2 - 0 answer - Dec 16, 2012
Exist a way to be a book in science doctorate degree PhD?
Asked by nikos - 1 answer - Jan 30, 2012
What would happen if you were able to stop Earth for one hour from the rotation she makes per day?
Asked by Tegbe - 1 answer - Dec 25, 2011
How big is earth
Asked by stevanhogg - 1 answer - Dec 11, 2011
How can you tell if a star is brighter than another?
Asked by Roxi900 - 1 answer - Oct 19, 2011
A star is 470 light years away & is to be 3rd magnitude.whats its absolute magnitude?
Asked by Roxi900 - 1 answer - Oct 15, 2011
A galaxy is 10 million light years away & another galaxy is 60 million light years away.
Asked by Roxi900 - 1 answer - Oct 10, 2011
A yellow star in a distant galaxy would appear what color to an observer on earth?
Asked by astronomy101 - 1 answer - Jun 20, 2011
What causes dark bands observed in a star's spectrum?
Asked by astronomy101 - 1 answer - Jun 07, 2011
The apparent shift in frequency of energy due to the relative motion of the object and the observer?
Asked by astronomy101 - 1 answer - Jun 07, 2011
Was 21 march 1969 a full moon?
Asked by jettboy - 1 answer - Apr 13, 2011
Who here thinks the world would actually end in 2012
Asked by Anonymous User - 3 answers - Apr 11, 2011
What is one problem with using size to classify planets?
Asked by nanabde1 - 1 answer - Sep 04, 2010
The sky was clear this am. Why was there a 1 minute cover over the sun.
Asked by mariebt - 1 answer - Jul 25, 2010
How fast am I going?
Asked by shandy - 3 answers - Jul 20, 2010
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