Cosmology

Where did today's universe come from?
Why is there more gravity in the universe than there should be?
Are there many universes out there, rather than just  one?
What is the shape of the universe?
Will Earth's occupation by humans be short-lived?
Selected bibliography on cosmology

See earth and its individual atoms in relation to the universe as a whole at the excellent Java applet called 'Secret Worlds: The Universe Within'.

Compiled, developed and maintained by Philip Smith