Beginning with an image termed the "Brief History of the Universe" this site examines (briefly, as noted) a timeline of the universe as dictated by the image. The timeline includes information on the big bang theory, the dark ages, the first light, and today.

All it takes is a simple S to make most English words plural. But it hasn't always worked that way (and there are, of course, exceptions). John McWhorter looks back to the good old days when English was newly split from German -- and books, names and eggs were beek, namen and eggru! [4:26]

Did you know that gold is extraterrestrial? Instead of arising from our planet's rocky crust, it was actually cooked up in space and is present on Earth because of cataclysmic stellar explosions called supernovae. CERN Scientist David Lunney outlines the incredible journey of gold from space to Earth. [4:34]

Compare the printed page to an electronic web page and use this activity to discuss the similarities and differences. A cross-curricular tie-in with ecosystems. Could easily be adapted to another subject area.

A detailed examination of "what is known about the Big Bang itself, the age of the universe, and the synthesis of the first atoms."

In this video from the Science and Technology Chat series, learn about astrobiology, an interdisciplinary field that uses biology, astronomy, and geology to study the origins of life on Earth and to search for possible life on other planets. [1:37]