Extras

Astronaut Walter Cunningham on the Historic Apollo 7 Mission
He discussed the first crewed Apollo mission, Apollo 7, with NOVA in 1998.
Astronaut Walter Cunningham on the Historic Apollo 7 Mission

New Eye on the Universe Preview
See the latest stunning images and discoveries from the James Webb Space Telescope.
New Eye on the Universe Preview

Ancient Builders of the Amazon Preview
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.
Ancient Builders of the Amazon Preview

Star Chasers of Senegal Preview
A visionary scientist investigates the deep history of astronomy in West Africa.
Star Chasers of Senegal Preview

These Trains Take Over for Their Drivers to Cut Travel Time
Can trains save their drivers time by changing direction on their own?
These Trains Take Over for Their Drivers to Cut Travel Time

Thousands race to build Europe's biggest construction project–London's new railroad.
London Super Tunnel Preview

How Engineers Soundproof a New Underground Train Track
Part of the new London track is directly below an iconic performing arts center.