Extras

Video thumbnail: NOVA Dog Tales Preview

NOVA

Dog Tales Preview

Follow the epic journey of dog domestication and see what science says about dogs’ love.

Dog Tales Preview

Video thumbnail: NOVA Polar Extremes Preview

NOVA

Polar Extremes Preview

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

Polar Extremes Preview

Video thumbnail: NOVA What if Carbon Left Your Tailpipe as Solid Chunks?

NOVA

What if Carbon Left Your Tailpipe as Solid Chunks?

Together, all the cars on Earth would leave quite the pile of carbon behind—every day.

What if Carbon Left Your Tailpipe as Solid Chunks?