Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

NOVA Online (click here for NOVA home)
Time Travel
Site Map

279,000 mps

No. You do not want to add velocities to get the correct answer. Here's a hint: Light always travels at 186,000 miles per second.

Try again.



Sagan on Time Travel | Traveling Through Time
Timespeak | Think Like Einstein | Resources
Teacher's Guide | Transcript | Site Map

Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule
About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print
PBS Online | NOVA Online | WGBH

© | Updated November 2000

Support provided by

For new content
visit the redesigned
NOVA site