4 ms·
Not really virtual worlds, but will let you fly through the universe and view it at different scales: http://en.spaceengine.org/ http://en.spaceengine.org/ http
by T-A 13y ago
Not really virtual worlds, but will let you fly through the universe and view it at different scales:
http://en.spaceengine.org/ http://en.spaceengine.org/
http://sourceforge.net/projects/celestia/ http://sourceforge.net/projects/celestia/
http://www.worldwidetelescope.org/ http://www.worldwidetelescope.org/