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- Better chow yields more milk: A more nutritious form of corn for dairy cows boosts farm profits, teen investigator finds
- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
What lies below
View larger image | Cratonic crust is cooler and stronger than oceanic crust. Typically such cooling would make a rock more dense, and it would drop below sea level. But cratons aren’t so dense, possibly because a period of melting removed heavier constituents such as iron.
Credit: J. Grotzinger and T. Jordan/Understanding Earth, 6th ed., adapted by T. Dubé
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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