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SpaceX CEO Elon Musk on the next giant leap for mankind

As the founder, CEO and lead designer at SpaceX, a private company that makes rockets and spacecraft, Elon Musk envisions a time when his reusable rockets will bring people to the moon and Mars. He's focused on humans becoming a "multi-planet species," and on the 50th anniversary of the Apollo 11 mission, he speaks with Jeffrey Kluger (editor-at-large at Time magazine, and the co-author of "Apollo 13") about his vision for the future.

On the brink: The Endangered Species Act

Around the world, plant and animal species are going extinct at a rate faster than any time in human history. The Endangered Species Act, signed into law 46 years ago, has succeeded in preventing hundreds of species on the list from going extinct, and has recovered 54 species. But new regulatory changes to the Act are being finalized by the Trump administration, which may weaken its ability to protect wildlife and habitat, and – say wildlife advocates – speed extinctions. Conor Knighton reports.

From 1979: Oil refinery vs. bald eagle

In Cobscook Bay, Maine, the Pittston Company's plans to build an oil refinery, welcomed by the tiny, struggling town, were met with resistance by environmentalists. The battle over the potential damage to the nesting area of the bald eagle (which in the 1970s was still an endangered species) led the Environmental Protection Agency to deny a permit. Correspondent Lem Tucker talked with Pittston vice president Arnold Kaulakis, Eastport city manager Everett Baxter, and environmental advocate Robert Gardiner, in a story first broadcast on "Sunday Morning" January 28, 1979. (Note: in 1983, after a decade-long effort, Pittston withdrew its plans to build the refinery citing escalating costs and global market conditions.)

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