
Geology: What Color was Ancient Earth?
Clip: Special | 1m 6sVideo has Closed Captions
If it wasn't green, what was it?
The Earth is more than four and a half billion years old. Learn more about what the Earth was like when it was young.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Science Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the 360 Immersive, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.

Geology: What Color was Ancient Earth?
Clip: Special | 1m 6sVideo has Closed Captions
The Earth is more than four and a half billion years old. Learn more about what the Earth was like when it was young.
Problems playing video? | Closed Captioning Feedback
Where to Watch Science Trek
Science Trek is available to stream on pbs.org and the PBS app.
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Science Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the 360 Immersive, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.

