Time Travel
This Nova Online site serves as a companion to the television program Time Travel. Learn what scientists and astronomers such as Carl Sagan and Albert Einstein thought about the possibility of time travel. If you could travel through time, what point in the future or past would you like to visit? Discuss your response with a small group of classmates.

The Dinosaurs Weren’t Alone
Learn more about the interrelated world of creatures that have existed on the planet over millions of years. Then imagine a final dialogue between Travis and Eckels in which Travis refers to the information on this Nova site. Write and share their last conversation.

Delia’s Place
Read this short story by Andria Skaff about Leigh, a paleontologist who experiences a type of time travel. Compare Leigh’s response to an ancient creature with that of Eckels in "A Sound of Thunder." What is your opinion of the two characters? Record your responses in the Web Links Activity Log.