Erik Christensen added Red shift
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Red shift
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Scale of solar system
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Scale of solar system
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Big bang introduction
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Big bang introduction
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Becoming a red giant
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Becoming a red giant
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Lifecycle of massive stars
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Lifecycle of massive stars
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added How Earth's tilt causes seasons
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed How Earth's tilt causes seasons
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Seasons aren't dictated by closeness to sun
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen removed Seasons aren't dictated by closeness to sun
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Megan Simmons removed Kinesthetic Astronomy
from 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Hubble's law
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Hubble image of galaxies
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Supermassive black holes
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Parsec definition
to 2012-2013 OER Fellows - on Sep 20, 09:26am
Erik Christensen added Why cepheids pulsate
to 2012-2013 OER Fellows - on Sep 20, 09:26am