There is a wealth of data available on the World Wide Web about our planet,
our solar system, and the universe. The following links allow the users
to access some of the data sites available to the public.
xShadow zone : The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being b
Daniel Wolf Savin, a senior research scientist at Columbia University's Astrophysics Laboratory, has published a paper on the research he and his colleagues have done on how stars began. In their research,...Read more