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This Week’s Top Editor Pick

30Jun 19
Yes, The Universe Is Expanding. But How Fast?

Yes, the universe is expanding. But how fast?

Astronomers agree that the universe is growing larger, and that the rate of expansion—called the Hubble constant—is accelerating. What they don’t agree on is the best way to measure that expansion rate. Current methods have produced numbers that don’t align. But scientists are now pursuing fascinating new approaches to assess…

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More 12-Story Library Editor Picks

Up for debate: What exactly ended the dinosaur era?

Is an asteroid strike truly to blame for the extinction of dinosaurs millions of years ago? Or were dinosaurs already…

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A breakthrough in transplant medicine

It’s a first: Scientists at the University of Tel Aviv in Israel have created a human heart using a 3D…

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Landmark discovery: A new species of ancient human

Researchers digging in a cave in the Philippines have excavated bones and teeth that they believe belonged to a human…

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Note: Each post is hand-selected by one of our editors to further explore a 12-Story Library book. Our most recent posts can be found here, but more posts and loads of additional resources can be found on each book’s page.

Featured Series

Earth's Ecosystems

Each book in the Earth’s Ecosystems series offers a glimpse at the different landscapes found across the globe. Filled with facts about the climates, plants, animals, and other features that are unique to each ecosystem, this series is sure to instill a sense of wonder about the world.

Click here to visit the series page.

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