PBS
Pbs Nova: A Conversation With Neil De Grasse Tyson
Nova offers an enlightening conversation with astrophysicist Neil deGrasse Tyson. Topics include origins of the universe, multidisciplinary approaches to science, exciting recent discoveries, his position as director of the Hayden...
Fourmilab Switzerland
John Walker: Your Sky
You can produce sky maps for any date and time, viewpoint or observing location. See your sky map, horizon view, or track an asteroid or comet on this highly interactive site.