Erik Christensen added Scale of the galaxy
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Scale of the galaxy
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Birth of stars
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Birth of stars
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Black holes
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Black holes
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Supernova (supernovae)
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Supernova (supernovae)
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Supernova clarification
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Supernova clarification
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Astronomy Picture of the Day
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Astronomy Picture of the Day
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Quasars
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Quasars
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Milankovitch cycles precession and obliquity
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Milankovitch cycles precession and obliquity
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Stellar distance using parallax
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Stellar distance using parallax
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Introduction to light
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Introduction to light
from 2012-2013 OER Fellows - on Sep 20, 09:26am