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Talk:Starlight problem (view source)
Revision as of 06:22, January 31, 2012
, 06:22, January 31, 2012→gravitationally bound and unbound objects: difference between bound & unbound
:::::::::: A group of bound objects, like a galaxy, will experience expansion relative to other galaxies to which it is not gravitationally bound. That is why we see far away galaxies expanding away from us, but not the galaxies in our Local Group. [[User:RachelW|RachelW]] 23:15, 30 January 2012 (EST)
:::::::::: A group of bound objects, like a galaxy, will experience expansion relative to other galaxies to which it is not gravitationally bound. That is why we see far away galaxies expanding away from us, but not the galaxies in our Local Group. [[User:RachelW|RachelW]] 23:15, 30 January 2012 (EST)
:::::::::::In fact we're bound all the way out to the Virgo Supercluster, if I remember correctly. --[[User:GeorgeLi|GeorgeLi]] 23:34, 30 January 2012 (EST)
:::::::::::In fact we're bound all the way out to the Virgo Supercluster, if I remember correctly. --[[User:GeorgeLi|GeorgeLi]] 23:34, 30 January 2012 (EST)
::::;:::::::The earth and moon are bound objects whose distance apart is relatively unchanging in an expanding universe, whereas the earth and unbound object K, measurable at a distance of light years this evening, will be at M light years + 45 miles x 60 seconds x 60 minutes x 24 hours tomorrow evening at this same time? [[User:RobSmith|Rob Smith]] 01:22, 31 January 2012 (EST)
===Rachel & Scott discuss among themselves and wait for Andy to cite his sources===
===Rachel & Scott discuss among themselves and wait for Andy to cite his sources===